KOPČA, Miroslav - VÁRY, Michal. Biomass boilers - security risks and their elimination. In Power engineering 2016. Renewable Energy Sources 2016 : 6th International Scientific Conference. Tatranské Matliare, Slovakia. May 31 - June 2, 2016. 1. vyd. Bratislava : Slovak University of Technology, 2016, S. 39-41. ISBN 978-80-89402-82-3. E*560/UEAE/2016