Scientific conference of PhD. students of FAFR and FBFS with international participation [elektronický zdroj]. 1ed. Nitra : Slovak University of Agriculture, 2018. 68 s. Available on Internet: <http://ves.uniag.sk/files/pdf/e90p0nl3wqchqy3q1eyduel9emyapy.pdf> ISBN 978-80-552-1905-9.