ŠABÍKOVÁ, Ingrid - ČIERNIK, Anton - KUBICOVÁ, Jana. Green economy and ecology in the context of sustainable development. In Exclusive e-Journal : Economy & Society & Environment. - Prešov : eXclusive marketing. ISSN 1339-4509, 2014, vol. 3, no. 2, s. 29-36. VEGA 1/0848/11. 1/0848/11, VEGA, Environmentálna regulácia s využitím dane z energií.