Krizanova A, Gajanova L, Nadanyiova M, Kramarova K. Study of green marketing principles and their implementation in the selected Slovak companies. GJBEM [Internet]. 2016 Nov. 4 [cited 2024 Nov. 23];6(2):78-85. Available from: https://un-pub.eu/ojs/index.php/gjbem/article/view/1371