DZURIČKOVÁ, Jana - LIESKOVSKÁ, Vanda. The Impact of changes in household income on the quality of life in V4 countries. In Marketing management, trade, financial and social aspects of business. International scientific conference. Marketing management, trade, financial and social aspects of business : conference proceedings of the 3rd international scientific conference : october 22 - 23, 2015, Košice, Slovak Republic. - Košice : Faculty of Business Economics with seat in Košice, 2016. ISBN 978-80-225-4163-3, s. 115-119 CD ROM. I-15-111-00, 2015.