Djordjevic Vladan DB,Niketic Marjan S,Novkovic Ivan,Tsiftsis Spyros (2026) Modelling the distribution and effectiveness of the protected area network in conserving Himantoglossum calcaratum (Orchidaceae) subspecies in Serbia, JOURNAL FOR NATURE CONSERVATION, vol. 93, br. , str. - (Article) 

Djordjevic Vladan DB,Lakusic Dmitar V,Novkovic Ivan,Stevanovic Vladimir B,Tsiftsis Spyros (2025) Factors Influencing Orchid Species Richness in the Central Balkans: The Importance of Belowground Organ Types, PLANTS-BASEL, vol. 14, br. 3, str. - (Article) 

Djordjevic Vladan DB,Krdzic Svetlana,Tsiftsis Spyros (2024) xGymnigritella suaveolens (Orchidaceae), a New Natural Hybrid to the Flora of Serbia, COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES, vol. 77, br. 10, str. 1440-1448 (Article) 

Djordjevic Vladan DB,Acic Svetlana,Kabas Eva N,Lazarevic Predrag M,Tsiftsis Spyros,Lakusic Dmitar V (2023) The Orchids of Wetland Vegetation in the Central Balkans, DIVERSITY-BASEL, vol. 15, br. 1, str. - (Review) 

Djordjevic Vladan DB,Tsiftsis Spyros,Kindlmann Pavel,Stevanovic Vladimir B (2022) Orchid diversity along an altitudinal gradient in the central Balkans, FRONTIERS IN ECOLOGY AND EVOLUTION, vol. 10, br. , str. - (Article) 

Jakubska-Busse Anna,Tsiftsis Spyros,Sliwinski Michal,Krenova Zdenka,Djordjevic Vladan DB,Steiu Corina,Kolanowska Marta,Efimov Petr,Hennigs Sebastian,Lustyk Pavel,Kreutz Karel CAJ (2021) How to Protect Natural Habitats of Rare Terrestrial Orchids Effectively: A Comparative Case Study of Cypripedium calceolus in Different Geographical Regions of Europe, PLANTS-BASEL, vol. 10, br. 2, str. - (Article) 

Djordjevic Vladan DB,Tsiftsis Spyros,Lakusic Dmitar V,Jovanovic Slobodan D,Stevanovic Vladimir B (2020) Orchid species richness and composition in relation to vegetation types, WULFENIA, vol. 27, br. , str. 183-210 (Article) 

Djordjevic Vladan DB,Tsiftsis Spyros,Lakusic Dmitar V,Jovanovic Slobodan D,Jakovljevic Ksenija M,Stevanovic Vladimir B (2020) Patterns of distribution, abundance and composition of forest terrestrial orchids (vol 29, pg 4111, 2020), BIODIVERSITY AND CONSERVATION, vol. 29, br. 14, str. 4135-4135 (Correction) 

Djordjevic Vladan DB,Tsiftsis Spyros,Lakusic Dmitar V,Jovanovic Slobodan D,Jakovljevic Ksenija M,Stevanovic Vladimir B (2020) Patterns of distribution, abundance and composition of forest terrestrial orchids, BIODIVERSITY AND CONSERVATION, vol. 29, br. 14, str. 4111-4134 (Article) 

Tsiftsis Spyros,Djordjevic Vladan DB (2020) Modelling sexually deceptive orchid species distributions under future climates: the importance of plant-pollinator interactions, SCIENTIFIC REPORTS, vol. 10, br. 1, str. - (Article) 

Djordjevic Vladan DB,Tsiftsis Spyros (2019) Patterns of orchid species richness and composition in relation to geological substrates, WULFENIA, vol. 26, br. , str. 1-21 (Article) 

Tsiftsis Spyros,Djordjevic Vladan DB,Tsiripidis Ioannis (2019) Neottia cordata (Orchidaceae) at its southernmost distribution border in Europe: Threat status and effectiveness of Natura 2000 Network for its conservation, JOURNAL FOR NATURE CONSERVATION, vol. 48, br. , str. 27-35 (Article) 

Tsiftsis Spyros,Djordjevic Vladan DB (2018) Habitat effects and differences in the reproductive success of Orchis punctulata and Orchis purpurea (Orchidaceae), TURKISH JOURNAL OF BOTANY, vol. 42, br. 4, str. 400-411 (Article) 

Djordjevic Vladan DB,Tsiftsis Spyros,Lakusic Dmitar V,Jovanovic Slobodan D,Stevanovic Vladimir B (2016) Factors affecting the distribution and abundance of orchids in grasslands and herbaceous wetlands, SYSTEMATICS AND BIODIVERSITY, vol. 14, br. 4, str. 355-370 (Article) 

Djordjevic Vladan DB,Tsiftsis Spyros,Lakusic Dmitar V,Stevanovic Vladimir B (2016) Niche analysis of orchids of serpentine and non-serpentine areas: Implications for conservation, PLANT BIOSYSTEMS, vol. 150, br. 4, str. 710-719 (Article)