Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hammer, J., Hänsel, S., Hoch, M., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., … Weinberg, M. (2011). Measurement of the Underlying Event Activity at the LHC with s√ = 7 TeV and Comparison with s√ = 0.9 TeV. Journal of High Energy Physics, 2011(109). https://doi.org/10.1007/jhep09(2011)109