Dimitŭr Nikolov Nankinov

• Chuzhdite vidove ptit︠s︡i v Evropa
• Izsledvanii︠a︡ vŭrkhu faunata na Bŭlgarii︠a︡
• Nesting and migration of Osprey, Pandion haliaetus (L.) (Aves: Falconiformes), in Bulgaria
• Past and present status of Black Stork, Ciconia nigra (L.)
• Sistematichen spisŭk, status i imena na ptit︠s︡ite v Bŭlgarii︠a︡