Tvrdá, E. , Botman, B. , Halenár, M. , Slanina, T. , Lukáč, N.. "In vitro Effects of Salvia officinalis on Bovine Spermatozoa". World Academy of Science, Engineering and Technology, Open Science Index 122, International Journal of Animal and Veterinary Sciences (2017), 11(2), 101 - 107.