Author A. Michalcová, I. Marek, A. Len, O. Heczko, J. Drahokoupil, D. Vojtěch, Š. Huber, R. Nováková Laboratory / Department Department of Magnetic Measurements and Materials DOI 10.1515/pac-2016-1028 Postscript Pure and Applied Chemistry 89 (2017) 1-8. Date 2017