Wissenschaftliche Artikel

Ai, B., Molisch, A. F., Rupp, M., & Zhong, Z.-D. (2020). 5G Key Technologies for Smart Railways. Proceedings of the IEEE, 108(6), 856–893. https://doi.org/10.1109/jproc.2020.2988595 ( reposiTUm)
Zöchmann, E., Hofer, M., Lerch, M., Pratschner, S., Bernadó, L., Blumenstein, J., Caban, S., Sangodoyin, S., Groll, H., Zemen, T., Prokeš, A., Rupp, M., Molisch, A., & Mecklenbräuker, C. (2019). Position-Specific Statistics of 60 GHz Vehicular Channels During Overtaking. IEEE Access, 7, 14216–14232. https://doi.org/10.1109/access.2019.2893136 ( reposiTUm)
Bernadó, L., Zemen, T., Tufvesson, F., Molisch, A. F., & Mecklenbräuker, C. F. (2015). Time- and Frequency-Varying K-Factor of Non-Stationary Vehicular Channels for Safety-Relevant Scenarios. IEEE Transactions on Intelligent Transportation Systems, 16(2), 1007–1017. https://doi.org/10.1109/tits.2014.2349364 ( reposiTUm)
Bernadó, L., Zemen, T., Tufvesson, F., Molisch, A. F., & Mecklenbräuker, C. (2014). Delay and Doppler Spreads of Nonstationary Vehicular Channels for Safety Relevant Scenarios. IEEE Transactions on Vehicular Technology, 63(1), 82–93. https://doi.org/10.1109/tvt.2013.2271956 ( reposiTUm)
Mecklenbräuker, C., Molisch, A. F., Karedal, J., Tufvesson, F., Paier, A., Bernadó, L., Zemen, T., Klemp, O., & Czink, N. (2011). Vehicular channel characterization and its implications for wireless system design and performance. Proceedings of the IEEE, 99(7), 1189–1212. https://doi.org/10.1109/jproc.2010.2101990 ( reposiTUm)
Karedal, J., Tufvesson, F., Czink, N., Paier, A., Dumard, C., Zemen, T., Mecklenbräuker, C., & Molisch, A. (2009). A Geometry-Based Stochastic MIMO Model for Vehicle-to-Vehicle Communications. IEEE Transactions on Wireless Communications, 8(7), 3646–3657. https://doi.org/10.1109/twc.2009.080753 ( reposiTUm)
Molisch, A., Tufvesson, F., Karedal, J., & Mecklenbräuker, C. (2009). A Survey on Vehicle-to-Vehicle Propagation Channels. IEEE Wireless Communications, 16(6), 12–22. https://doi.org/10.1109/mwc.2009.5361174 ( reposiTUm)
Paier, A., Karedal, J., Czink, N., Dumard, C., Zemen, T., Tufvesson, F., Molisch, A. F., & Mecklenbräuker, C. F. (2009). Characterization of Vehicle-to-Vehicle Radio Channels from Measurements at 5.2 GHz. Wireless Personal Communications, 50(1), 19–32. https://doi.org/10.1007/s11277-008-9546-6 ( reposiTUm)
Almers, P., Bonek, E., Burr, A., Czink, N., Debbah, M., Degli-Esposti, V., Hofstetter, H., Kyösti, P., Laurenson, D., Matz, G., Molisch, A. F., Oestges, C., & Özcelik, H. (2007). Survey of Channel and Radio Propagation Models for Wireless MIMO Systems. EURASIP Journal on Wireless Communications and Networking, 2007(019070). https://doi.org/10.1155/2007/19070 ( reposiTUm)
Asplund, H., Glazunov, A., Molisch, A. F., Pedersen, K. I., & Steinbauer, M. (2006). The COST 259 Directional Channel Model-Part II: Macrocells. IEEE Transactions on Wireless Communications, 12(vol. 5), 3434–3450. http://hdl.handle.net/20.500.12708/171824 ( reposiTUm)
Molisch, A. F., Asplund, H., Heddergott, R., Steinbauer, M., & Zwick, T. (2006). The COST259 Directional Channel Model-Part I: Overview and Methodology. IEEE Transactions on Wireless Communications, 12(vol. 5), 3421–3433. http://hdl.handle.net/20.500.12708/171823 ( reposiTUm)

Beiträge in Tagungsbänden

Hammoud, H., Zhang, Y., Cheng, Z., Sangodoyin, S., Hofer, M., Pasic, F., Pohl, T. M., Zavorka, R., Prokes, A., Zemen, T., Mecklenbräuker, C. F., & Molisch, A. F. (2024). A Novel Low-Cost Channel Sounder for Double-Directionally Resolved Measurements in the MmWave band. In ICC 2024 - IEEE International Conference on Communications (pp. 3195–3201). IEEE. https://doi.org/10.1109/ICC51166.2024.10623048 ( reposiTUm)
Hofer, M., Löschenbrand, D., Blumenstein, J., Groll, H., Zelenbaba, S., Rainer, B., Bernadó, L., Vychodil, J., Mikulasek, T., Zöchmann, E., Sangodoyin, S., Hammoud, H., Schrenk, B., Langwieser, R., Pratschner, S., Prokes, A., Molisch, A. F., Mecklenbräuker, C., & Zemen, T. (2021). Wireless Vehicular Multiband Measurements in Centimeterwave and Millimeterwave Bands. In 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). IEEE. https://doi.org/10.1109/pimrc50174.2021.9569547 ( reposiTUm)
Groll, H., Zöchmann, E., Hofer, M., Hammoud, H., Sangodoyin, S., Zemen, T., Blumenstein, J., Prokes, A., Molisch, A., & Mecklenbräuker, C. (2020). 60 GHz V2I Channel Variability for Different Elevation Angle Switching Strategies. In 2020 14th European Conference on Antennas and Propagation (EuCAP). IEEE Xplore. https://doi.org/10.23919/eucap48036.2020.9135524 ( reposiTUm)
Prokes, A., Blumenstein, J., Vychodil, J., Mikulasek, T., Marsalek, R., Zöchmann, E., Groll, H., Mecklenbräuker, C., Zemen, T., Chandra, A., Hammoud, H., & Molisch, A. (2019). Multipath Propagation Analysis for Vehicle-to-Infrastructure Communication at 60 GHz. In 2019 IEEE Vehicular Networking Conference (VNC). IEEE. https://doi.org/10.1109/vnc48660.2019.9062771 ( reposiTUm)
Groll, H., Zöchmann, E., Pratschner, S., Lerch, M., Schützenhöfer, D., Hofer, M., Blumenstein, J., Sangodoyin, S., Zemen, T., Prokes, A., Molisch, A., & Caban, S. (2019). Sparsity in the Delay-Doppler Domain for Measured 60 GHz Vehicle-to-Infrastructure Communication Channels. In 2019 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE International Conference on Communications (ICC 2019), Shanghai, China. IEEE. https://doi.org/10.1109/iccw.2019.8756930 ( reposiTUm)
Groll, H., Zöchmann, E., Pratschner, S., Langwieser, R., Pohl, T., Molisch, A. F., & Mecklenbräuker, C. (2019). Scanning Aperture Antennas with Spherical Shells. In 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, Spain. IEEE. https://doi.org/10.1109/iceaa.2019.8879413 ( reposiTUm)
Blumenstein, J., Prokes, A., Vychodil, J., Mikulasek, T., Zöchmann, E., Groll, H., Mecklenbräuker, C., Hofer, M., Zemen, T., Sangodoyin, S., & Molisch, A. F. (2019). Vehicle-to-Vehicle Millimeter-Wave Channel Measurements at 56-64 GHz. In 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall). IEEE 90th Vehicular Technology Conference (VTC2019-Fall), Honolulu, United States of America (the). IEEE. https://doi.org/10.1109/vtcfall.2019.8891543 ( reposiTUm)
Zöchmann, E., Mecklenbräuker, C., Lerch, M., Pratschner, S., Hofer, M., Löschenbrand, D., Blumenstein, J., Sangodoyin, S., Artner, G., Caban, S., Zemen, T., Prokes, A., Rupp, M., & Molisch, A. (2019). Measured Delay and Doppler Profiles of Overtaking Vehicles at 60 GHz. In COST CA15104 IRACON 9th MC meeting and 9th technical meeting (pp. 1–6). http://hdl.handle.net/20.500.12708/76579 ( reposiTUm)
Zöchmann, E., Hofer, M., Lerch, M., Blumenstein, J., Sangodoyin, S., Groll, H., Pratschner, S., Caban, S., Löschenbrand, D., Bernadó, L., Zemen, T., Prokes, A., Rupp, M., Mecklenbräuker, C., & Molisch, A. (2018). Statistical Evaluation of Delay and Doppler Spread in 60 GHz Vehicle-to-Vehicle Channels During Overtaking. In Proceedings of the 2018 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) (pp. 1–4). http://hdl.handle.net/20.500.12708/76234 ( reposiTUm)
Blumenstein, J., Prokes, A., Vychodil, J., Mikulasek, T., Milos, J., Zöchmann, E., Groll, H., Mecklenbräuker, C., Hofer, M., Löschenbrand, D., Bernadó, L., Zemen, T., Sangodoyin, S., & Molisch, A. (2018). Measured High-Resolution Power-Delay Profiles of Nonstationary Vehicular Millimeter Wave Channels. In Proceedings of the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (pp. 1–5). http://hdl.handle.net/20.500.12708/75066 ( reposiTUm)
Zöchmann, E., Mecklenbräuker, C., Lerch, M., Pratschner, S., Hofer, M., Löschenbrand, D., Blumenstein, J., Sangodoyin, S., Artner, G., Caban, S., Zemen, T., Prokes, A., Rupp, M., & Molisch, A. F. (2018). Measured Delay and Doppler Profiles of Overtaking Vehicles at 60 GHz. In Proceedings of the 12th European Conference on Antennas and Propagation (pp. 1–5). http://hdl.handle.net/20.500.12708/76100 ( reposiTUm)
Prokes, A., Vychodil, J., Mikulasek, T., Blumenstein, J., Zöchmann, E., Groll, H., Mecklenbräuker, C., Hofer, M., Löschenbrand, D., Bernadó, L., Zemen, T., Sangodoyin, S., & Molisch, A. (2018). Time-Domain Broadband 60 GHz Channel Sounder for Vehicle-to-Vehicle Channel Measurement. In Proceedings of the 2018 IEEE Vehicular Networking Conference (VNC) (pp. 1–7). http://hdl.handle.net/20.500.12708/76350 ( reposiTUm)
Bernadó, L., Zemen, T., Tufvesson, F., Molisch, A. F., & Mecklenbräuker, C. (2012). The (in-) validity of the WSSUS assumption in vehicular radio channels. In 2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC). IEEE Xplore. https://doi.org/10.1109/pimrc.2012.6362634 ( reposiTUm)
Bernadó, L., Roma, A., Zemen, T., Czink, N., Karedal, J., Paier, A., Thiel, A., Klemp, O., Tufvesson, F., Molisch, A., & Mecklenbräuker, C. (2011). In-Tunnel Vehicular Radio Channel Characterization. In 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring). 2011 IEEE 73rd Vehicular Technology Conference, Budapest, Hungary, EU. https://doi.org/10.1109/vetecs.2011.5956510 ( reposiTUm)
Karedal, J., Tufvesson, F., Abbas, T., Klemp, O., Paier, A., Bernadó, L., & Molisch, A. F. (2010). Radio Channel Measurements at Street Intersections for Vehicle-to-Vehicle Safety Applications. In Proceedings IEEE VTC Spring 2010 (p. 5). http://hdl.handle.net/20.500.12708/71903 ( reposiTUm)
Abbas, T., Karedal, J., Tufvesson, F., Paier, A., Klemp, O., Bernadó, L., & Molisch, A. (2010). Directional Analysis of Vehicle-to-Vehicle Propagation Channels. In 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring). 2010 IEEE 71st Vehicular Technology Conference: VTC2010-Spring, Taipei, Non-EU. https://doi.org/10.1109/vetecs.2011.5956706 ( reposiTUm)
Abbas, T., Karedal, J., Tufvesson, F., Paier, A., Bernadó, L., & Molisch, A. (2010). Directional Analysis of Vehicle-to-Vehicle Propagation in Different Traffic Environments. In Proceeding 12th COST2100 Management Committee Meeting (p. 5). http://hdl.handle.net/20.500.12708/71948 ( reposiTUm)
Bernadó, L., Zemen, T., Karedal, J., Paier, A., Thiel, A., Klemp, O., Czink, N., Tufvesson, F., Molisch, A., & Mecklenbräuker, C. (2010). Multi-Dimensional K-Factor Analysis for V2V Radio Channels in Open Sub-urban Street Crossings. In Proceeding 10th COST2100 Management Committee Meeting (p. 8). http://hdl.handle.net/20.500.12708/71947 ( reposiTUm)
Bernadó, L., Zemen, T., Karedal, J., Paier, A., Thiel, A., Klemp, O., Czink, N., Tufvesson, F., Molisch, A., & Mecklenbräuker, C. (2010). Multi-Dimensional K-Factor Analysis for V2V Radio Channels in Open Sub-urban Street Crossings. In Proceedings of PIMRC 2010 (p. 5). http://hdl.handle.net/20.500.12708/71957 ( reposiTUm)
Karedal, J., Tufvesson, F., Czink, N., Paier, A., Dumard, C., Zemen, T., Mecklenbräuker, C., & Molisch, A. (2009). Measurement-Based Modeling of Vehicle-to-Vehicle MIMO Channels. In 2009 IEEE International Conference on Communications. IEEE, Austria. IEEE Xplore. https://doi.org/10.1109/icc.2009.5199175 ( reposiTUm)
Paier, A., Zemen, T., Karedal, J., Czink, N., Dumard, C., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. F. (2009). Spatial Diversity and Spatial Correlation Evaluation of Measured Vehicle-to-Vehicle Radio Channels at 5.2 GHz. In Proceeding 7th COST2100 Management Committee Meeting (p. 7). http://hdl.handle.net/20.500.12708/71037 ( reposiTUm)
Paier, A., Bernadó, L., Karedal, J., Klemp, O., Kwoczek, A., Tufvesson, F., Thiel, A., Zhou, Y., Czink, N., Zemen, T., Molisch, A. F., & Mecklenbräuker, C. (2009). Overview of Vehicle-to-Vehicle Radio Channel Measurements for Collision Avoidance Applications. In Proceeding 9th COST2100 Management Committee Meeting (p. 6). http://hdl.handle.net/20.500.12708/71038 ( reposiTUm)
Molisch, A., Tufvesson, F., Karedal, J., & Mecklenbräuker, C. (2009). Propagation aspects of vehicle-to-vehicle communications - an overview. In 2009 IEEE Radio and Wireless Symposium. IEEE Radio and Wireless Symposium (RAWCON 2009), San Diego (CA), USA, Non-EU. IEEE. https://doi.org/10.1109/rws.2009.4957315 ( reposiTUm)
Paier, A., Zemen, T., Karedal, J., Czink, N., Dumard, C., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. F. (2009). Spatial Diversity and Spatial Correlation Evaluation of Measured Vehicle-to-Vehicle Radio Channels at 5.2 GHz. In 2009 IEEE 13th DSP Workshop & 5th SPE Workshop (p. 5). IEEE Catalog. http://hdl.handle.net/20.500.12708/70727 ( reposiTUm)
Mecklenbräuker, C., Paier, A., Zemen, T., Matz, G., & Molisch, A. (2008). On Temporal Evolution of Signal Subspaces in Vehicular MIMO Channels in the 5 GHz Band. In Joint Workshop on Coding and Communications (JWCC 2008). Joint Workshop on Coding and Communications (JWCC), St. Helena (CA), USA, Non-EU. http://hdl.handle.net/20.500.12708/70333 ( reposiTUm)
Mecklenbräuker, C., Paier, A., Zemen, T., Matz, G., & Molisch, A. (2008). On the Temporal Evolution of Signal Subspaces in Vehicular MIMO Channels in the 5 GHz Band. In 6th COST2100 Management Committee Meeting (p. 5). http://hdl.handle.net/20.500.12708/70405 ( reposiTUm)
Paier, A., Karedal, J., Czink, N., Dumard, C., Zemen, T., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. (2008). Comparison of Lund’07 Vehicular Channel Measurements with the IEEE 802.11p Channel Model. In Proceeding 4th COST2100 Management Committee Meeting (p. 7). http://hdl.handle.net/20.500.12708/70218 ( reposiTUm)
Paier, A., Karedal, J., Zemen, T., Czink, N., Dumard, C., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. (2008). Description of Vehicle-to-Vehicle and Vehicle-to-Infrastructure Radio Channel Measurements at 5.2 GHz. In COST 2100, 6th Management Committee Meeting (p. 9). http://hdl.handle.net/20.500.12708/70404 ( reposiTUm)
Paier, A., Zemen, T., Bernadó, L., Matz, G., Karedal, J., Czink, N., Dumard, C., Tufvesson, F., Molisch, A., & Mecklenbräuker, C. (2008). Non-WSSUS vehicular channel characterization in highway and urban scenarios at 5.2GHz using the local scattering function. In 2008 International ITG Workshop on Smart Antennas. ITG Workshop on Smart Antennas, Ulm , Germany, EU. https://doi.org/10.1109/wsa.2008.4475530 ( reposiTUm)
Bernadó, L., Zemen, T., Paier, A., Matz, G., Karedal, J., Czink, N., Dumard, C., Tufvesson, F., Hagenauer, M., Molisch, A. F., & Mecklenbräuker, C. (2008). Non-WSSUS Vehicular Channel Characterization at 5.2 GHz - Spectral Divergence and Time-Variant Coherence Parameters. In Proceedings XXIX General Assembly of the International Union of Radio Science (p. 4). http://hdl.handle.net/20.500.12708/71041 ( reposiTUm)
Czink, N., Tian, R., Wyne, S., Eriksson, G., Tufvesson, F., Zemen, T., Nuutinen, J.-P., Ylitalo, J., Bonek, E., & Molisch, A. F. (2007). Tracking Time-Variant Cluster Parameters in MIMO Channel Measurements: Algorithm and Results. In Proceedings of the 3rd Cost 2100 Management Committee Meeting. 3rd COST 2100 Management Committee Meeting, Duisburg, Germany, EU. http://hdl.handle.net/20.500.12708/69760 ( reposiTUm)
Paier, A., Karedal, J., Czink, N., Hofstetter, H., Dumard, C., Zemen, T., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. (2007). First Results from Car-to-Car and Car-to-infrastructure Radio Channel Measurements at 5.2 GHz. In 3rd COST2100 Management Committee Meeting (p. 14). http://hdl.handle.net/20.500.12708/69890 ( reposiTUm)
Paier, A., Karedal, J., Czink, N., Hofstetter, H., Dumard, C., Zemen, T., Tufvesson, F., Molisch, A., & Mecklenbräuker, C. (2007). Car-to-car radio channel measurements at 5 GHz: Pathloss, power-delay profile, and delay-Doppler spectrum. In IEEE International Symposium on Wireless Communication Systems 2007 (p. 5). http://hdl.handle.net/20.500.12708/69871 ( reposiTUm)
Czink, N., Tian, R., Wyne, S., Eriksson, G., Zemen, T., Ylitalo, J., Tufvesson, F., & Molisch, A. F. (2007). CLUSTER PARAMETERS FOR TIME-VARIANT MIMO CHANNEL MODELS. In Proceedings of the European Conference on Antennas and Propagation. European Conference on Antennas and Propagation (EuCAP) 2007, Edinburgh, UK, EU. http://hdl.handle.net/20.500.12708/69759 ( reposiTUm)
Czink, N., Tian, R., Wyne, S., Tufvesson, F., Nuutinen, J.-P., Ylitalo, J., Bonek, E., & Molisch, A. F. (2007). Tracking Time-Variant Cluster Parameters in MIMO Channel Measurements. In Proceedings of the ChinaCom 2007. ChinaCom 2007, Shanghai, China, Non-EU. http://hdl.handle.net/20.500.12708/69754 ( reposiTUm)
Paier, A., Karedal, J., Czink, N., Hofstetter, H., Dumard, C., Zemen, T., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. (2007). First Results from Car-to-Car and Car-to-Infrastructure Radio Channel Measurements at 5.2 GHz. In Proceedings of 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC´07) (p. 5). http://hdl.handle.net/20.500.12708/69681 ( reposiTUm)
Hofstetter, H., Czink, N., & Molisch, A. (2006). A twin-cluster MIMO channel model. In Proceedings EuCAP 2006 (p. 8). http://hdl.handle.net/20.500.12708/69463 ( reposiTUm)
Wyne, S., Czink, N., Karedal, J., Almers, P., Tufvesson, F., & Molisch, A. (2006). A Cluster-based Analysis of Outdoor-to-Indoor Office MIMO Measurements at 5.2 GHz. In IEEE Vehicular Technology Conference 2006 Fall. IEEE Vehicular Technology Conference (VTC), Stockholm, Schweden, Austria. http://hdl.handle.net/20.500.12708/69467 ( reposiTUm)
Molisch, A., Steinbauer, M., & Asplund, H. (2002). Virtual Cell Deployment Areas" and “Cluster Tracing” - new methods for directional channel modeling in microcells. In Proceedings of the IEEE 55th Vehicular Technology Conference (pp. 1279–1283). http://hdl.handle.net/20.500.12708/69860 ( reposiTUm)
Asplund, H., Molisch, A. F., Steinbauer, M., & Mehta, N. B. (2002). Clustering of scatterers in mobile radio channels - Evaluation and modeling in the COST259 directional channel model. In Proceedings of the IEEE International ICC (pp. 901–905). http://hdl.handle.net/20.500.12708/69844 ( reposiTUm)
Molisch, A. F., Steinbauer, M., Asplund, H., & Mehta, N. B. (2002). Blackward Compatibility of the COST259 Directional Channel Model. In Proceedings of the 5th International Symposium of Wireless Personal Multimedia Communications 2002 (pp. 549–553). http://hdl.handle.net/20.500.12708/69957 ( reposiTUm)

Beiträge in Büchern

Bernadó, L., Czink, N., Zemen, T., Paier, A., Tufvesson, F., Mecklenbräuker, C., & Molisch, A. F. (2012). Vehicular Channels. In LTE-Advanced and Next Generation Wireless Networks: Channel Modelling and Propagation (pp. 153–185). John Wiley & Sons. http://hdl.handle.net/20.500.12708/27601 ( reposiTUm)

Präsentationen

Mecklenbräuker, C., Paier, A., Karedal, J., Czink, N., Matz, G., Hofstetter, H., Dumard, C., Zemen, T., Tufvesson, F., & Molisch, A. (2008). Analysis of time-variant channel measurements with the Lund channel sounder. Guest lecture at Norges Teknisk-Naturvitenskapelige Universitet (NTNU), Trondheim, Norge, Non-EU. http://hdl.handle.net/20.500.12708/88813 ( reposiTUm)
Mecklenbräuker, C., Paier, A., Karedal, J., Czink, N., Hofstetter, H., Dumard, C., Zemen, T., Tufvesson, F., & Molisch, A. (2007). Challenges in vehicular communications for impactive systems - Dynamics, Doppler, and Delay,. Joint Workshop on Coding and Communications (JWCC), St. Helena (CA), USA, Non-EU. http://hdl.handle.net/20.500.12708/88658 ( reposiTUm)

Berichte

Molisch, A. F. (1997). The two-path equivalent matrix (TPEM) method: A new approach to computing error probabilities in mobile radio channels. http://hdl.handle.net/20.500.12708/31002 ( reposiTUm)
Fuhl, J., Bonek, E., & Molisch, A. F. (1996). Smart antenna schemes for mobile radio applications: A Review. http://hdl.handle.net/20.500.12708/31015 ( reposiTUm)