Management challenges in the 21st century managing the intangible: ethics and value changes in business, education and research : conference proceedings : [5th international research conference] : april 25, 2013, Bratislava - Ferenčíková, Soňa, 1960-; Šestáková, Monika; Hvorecký, Jozef; Hontyová, Kajetána; Kita, Jaroslav ([School of Management/Vysoká škola manažmentu v Trenčíne], 2013)