MERKÚR 2015 <the> proceedings of the international scientific conference for PhD. students and young scientists : Virt, December 3 - 4, 2015 - Drábik, Peter, 1981-; Krnáčová, Paulína, 1983-; Pajtinková - Bartáková, Gabriela; Karlíček, Miroslav (Publisher EKONÓM, 2015)