Tvrdá, E., Lukáč, N., Lukáčová, J., Kňažická, Z. and Massányi, P. 2013. STIMULATING AND PROTECTIVE EFFECTS OF VITAMIN E ON BOVINE SPERMATOZOA . Journal of microbiology, biotechnology and food sciences. 2, special issue 2 (Feb. 2013), 1386–1395.