The evaluation of chlorophyll and total carotenoid content in leaves of sweet potato according to variety and harvesting date / Michal Vasiľ ; supervising lecturer Miroslav Šlosár , 2019 . 35 s . Diplomová práca (Ing.). - Katedra zeleninárstva FZKI SPU v Nitre
http://opac.crzp.sk/openURL?crzpSigla=spunitra&crzpID=33318 . [1, z toho požičaných 0]