Economics and Business Management in the 21st Century. International Scientific Conference. Economics and Business Management in the 21st Century : Proceedings from the 4th International Scientific Conference, 28th– 29th November, 2018, (Ostrava, Czech Republic). Edited by: Ivana Prusenovská, Kateřina Stanovská. 1st Edition. Ostrava : VŠB - Technical University of Ostrava, 2019. online 308 s. ISBN 978-80-248-4279-0.