GONDA, Vladimír. Plynová kríza a opatrenia krajín stredoeurópskeho regiónu na posilnenie energetickej bezpečnosti. In Problems and prospects of territories' socio-economic development : collections of materials of the 2nd International scientific conference : April 25-29, 2013, Opole, Poland. - Berdyansk : Publishing Tkachuk, 2013. ISBN 978-966-2261-48-6, s. 133-134. VEGA 1/0174/11 (50%), ITMS 26240120032 (50%).