GÁLOVÁ, Jana. Opportunities for doing business with countries neighbouring V4 - the case of Ukraine. In Entrepreneurial business and economics review. ISBN 978-83-939576-0-6. . Krakov : Cracow University of Economics, 2013, 2013, vol. 1, s. 77-90. Dostupné na internete:<http://www.eber.uek.krakow.pl/index.php/eber/article/view/6> Indexované v: WoS