Pavlik, Ales, Petr Slama, Martina Lichovnikova, and Zdenek Havlicek. 2012. “EFFECT OF DIETARY SELENIUM FORMS ON SELENIUM BLOOD CONCENTRATION IN LAYING HENS”. Journal of Microbiology, Biotechnology and Food Sciences 1 (Special issue):1082-89. https://office2.jmbfs.org/index.php/JMBFS/article/view/7413.