MERKÚR 2014 : the proceedings of the international scientific conference for PhD. students and young scientists : Virt, December 4 - 5, 2014. pp. 35-41 [CD-ROM]. - Bratislava : Publisher EKONÓM, 2014 / Drábik Peter ; Krnáčová Paulína ; Pajtinková - Bartáková Gabriela ; Karlíček Miroslav ; MERKÚR 2014 International scientific conference for PhD. students and young scientists. ISBN 978-80-225-3993-7