A new ecosystem services approach to enable identification of pro-biodiversity businesses of protected karst areas in Central and South-Eastern Europe oleh Sašo Gorjanc, Tina Simončič, Aleš Poljanec, Béla Kuslits, Ildikó Arany, Eszter Tanács, Ágnes Vári, Réka Aszalós, Anghel Drasovean, Alin Mos, Laura Maeso Velasco, Andrea Reuter, Udo Gattenlohner