Authors
Šárka Čemerková
Silesian University in Opava, School of Business Administration in Karviná, Department of Business Economics and Management, Univerzitní náměstí 1934/3,, Karviná, Czech Republic
Jarmila Šebestová
Silesian University in Opava, School of Business Administration in Karviná, Department of Business Economics and Management, Univerzitní náměstí 1934/3,, Karviná, Czech Republic
Roman Šperka
Silesian University in Opava, School of Business Administration in Karviná, Department of Business Economics and Management, Univerzitní náměstí 1934/3,, Karviná, Czech Republic
