Fortmueller A, ARP A-K, KIEHNE J, DUENNWEBER M. INNOVATIVE LEADERSHIP AND MARKETING IN THE STYRIAN VOLCANIC REGION. ECOFORUM [Internet]. 2019 Jan. 30 [cited 2025 Nov. 22];8(1). Available from: https://ecoforumjournal.ro/index.php/eco/article/view/2479