MATUŠEK, Vladimír et al. Mathematical competences as a part of educational objectives in economical and technical study programs. In The agri-food value chain: challenges for natural resources management and society. 1st ed. online (1108 s.). ISBN 978-80-552-1503-7. Medzinárodné vedecké dni. Nitra : Slovak University of Agriculture, 2016, s. 628-633, online. Available on Internet:<http://dx.doi.org/10.15414/isd2016.s8.08> Indexované v: WoS