ADAMEC, Samuel - ANDREJIOVÁ, Alena. Effect of selected plant biostimulants on yield and quality of onion (Allium cepa L.) and potatoes (Solanum tuberosum L.). In Scientific Conference of PhD. Students of FAFR, FBFS and FHLE SUA in Nitra. 1. vyd. ISBN 978-80-552-2242-4. Scientific Conference of PhD. Students of FAFR, FBFS and FHLE SUA in Nitra. Nitra : Slovenská poľnohospodárska univerzita, 2020, s. 65. Dostupné na internete:<http://www.slpk.sk/eldo/2020/zborniky/9788055222424.pdf>