Sahuiquillo, A., Ricci, M., Bercaru, O., Emteborg, H., Ulberth, F., Morabito, R., Brunori, C., Madrid, Y., Rosenberg, E.-E., Polyak, K., & Muntau, H. (2009). Preparation of Reference Materials for Proficiency Testing Schemes. In C. Gonzalez, R. Greenwood, & P. Quevauviller (Eds.),
Rapid Chemical and Biological Techniques for Water Monitoring (pp. 335–350). John Wiley & Sons.
http://hdl.handle.net/20.500.12708/26713 ( reposiTUm)