Shares of main components in selected solid biofuels / Ivan Vitázek, Peter Vereš, Božena Vitázková .
In: PRAE 2011 : proceedings of scientific works,. -- Nitra : Slovak University of Agriculture, 2011. -- ISBN 978-80-552-0662-2. -- S. 145-149
Kategória EPCA do 2021: AED
www.slpk.sk/eldo/2012/zborniky/004-12/Vitazek2.pdf .