Balkan Vegetation Database (BVD) – updated information and current status oleh Kiril Vassilev, Hristo Pedashenko, Alexandra Alexandrova, Alexandar Tashev, Anna Ganeva, Anna Gavrilova, Armin Macanović, Assen Assenov, Antonina Vitkova, Beloslava Genova, Borislav Grigorov, Chavdar Gussev, Ermin Masic, Eva Filipova, Gana Gecheva, Ina Aneva, Illona Knolova, Ivaylo Nikolov, Georgi Georgiev, Georgi Gogushev, Georgi Tinchev, Ivan Minkov, Kalina Pachedzieva, Katerina Mincheva, Koycho Koev, Mariyana Lyubenova, Marius Dimitrov, Media Gumus, Momchil Nazarov, Nadezhda Apostolova-Stoyanova, Nikolay Nikolov, Nikolay Velev, Petar Zhelev, Plamen Glogov, Rayna Natcheva, Rossen Tzonev, Senka Barudanović, Sofia Kostadinova, Steffen Boch, Stephan Hennekens, Stoyan Georgiev, Stoyan Stoyanov, Todor Karakiev, Tijana Ilić, Veronika Kalníková, Veselin Shivarov, Vladimir Vulchev