KUBIČKOVÁ, Viera - ČUKANOVÁ, Miroslava - KOVAČEVIČ, Dubravka. Demand for Business Services in the Visegrad Group Countries and It´s factors of Development. Focus on Slovakia. In Central and Eastern Europe in the Changing Business Environment. International Joint Conference. Central and Eastern Europe in the Changing Business Environment : Proceedings from 19th International Joint Conference, May 24, 2019, (Prague, Czech Republic). - Bratislava : Vydavateľstvo EKONÓM, 2019. ISBN 978-80-225-4620-1. ISSN 2453-6113, pp. 173-186 online. VEGA 1/0543/18.