Author W.Mroz, M. Jelínek, M.Jedynski, J.Hoffman, B.Major, A.Prokopiuk, Z.Szymanski Laboratory / Department Department of Optical and Biophysical Systems DOI 10.1088/1742-6596/59/1/153 Postscript Journal of Physics: Conference series, 59, S720-723 Date 2007