Doctoral school program in agricultural and biosystems engineering / I. Farkas, I. Seres .
In: Physics 2009 : proceedings of scientific works, Nitra Slovak Republic, October 2009. -- Nitra : Slovak University of Agriculture, 2009. -- ISBN 978-80-552-0264-8
http://www.slpk.sk/eldo/2010/zborniky/004-10/farkas.pdf .