Author: Stoyan Marinov
ecotourism
5. Development of specialized tourism types in protected areas (modelled on Roussenski Lom Nature Park)
Author: Maria Vodenska, Ventsislav Chemberski
31. Eco-cultural tourism: tool for sustainable development (the village of Dragoynovo, municipality of Parvomay
Author: Ivanka Shopova, Krasimir Levkov, Zlatka Grigorova