Tvrdá, E., A. Varga, M. Slávik, and J. Árvay. “LEVISTICUM OFFICINALE AND ITS EFFECTS ON BOVINE SPERMATOZOA ACTIVITY”. Journal of Microbiology, Biotechnology and Food Sciences, vol. 8, no. 5, Apr. 2019, pp. 1212-6, doi:10.15414/jmbfs.2019.8.5.1212-1216.