Aplication of agrophysics in modern agriculture / J. Horabik, G. Józefaciuk .
In: PRAE 2011 : proceedings of scientific works [149 s.]. -- Nitra : Slovak University of Agriculture, 2011. -- ISBN 978-80-552-0662-2 (brož.). -- S. 58-61
http://www.slpk.sk/eldo/2012/zborniky/004-12/Horabik-Jozefaciuk.pdf .