Vacheva, E. D., Naumov, B. Y., Tzankov, N. D., 2020. Diversity and Habitat Preferences in Lizard Assemblages (Reptilia: Sauria) from Model Territories in Western Bulgaria. — Acta zoologica bulgarica, 72 [accepted paper].
Nemitz-Kliemchen, M., Andres, C., Hofmann, S., Ramírez, A. M. P., Stoev, P., Tzankov, N., Schaffer, S., Bernhard, D., Henle, K., Schlegel, M., 2020. Spatial and genetic structure of a Lacerta viridis metapopulation in a fragmented landscape in Bulgaria. — Global Ecology and Conservation, 23: e01104. doi:10.1016/j.gecco.2020.e01104
Popova, S., Vacheva, E., Tzankov, N., 2019. Sexual size dimorphism in the Balkan subspecies of the Sand lizard Lacerta agilis bosnica Schreiber, 1912 (Reptilia: Lacertidae) in Bulgaria. — Scientific Sessions of the Faculty of Biology, 104: 141—153.
Popgeorgiev, G., Naumov, B., Kornilev, Y., Vergilov, V., Slavchev, M., Lukanov, S., Dyugmegdzhiev, A., Stoyanov, A., Dobrev, D., Tzankov, N., 2019. Diversity and Distribution of Amphibians and Reptiles in the Bulgarian Part of the Lower Danube. — p. 283—314.
Vergilov, V., Tzankov, N., Zlatkov, B., 2018. Age structure and growth in Bulgarian populations of Ablepharus kitaibelii (Bibron & Bory de Saint-Vincent, 1833) (Squamata: Sauria: Scincidae). — Herpetozoa, 30 (3/4): 179—185. [PDF]
Vergilov, V., Tzankov, N., 2018. Contribution to the individual marking techniques for small lizards: heat branding on Ablepharus kitaibelii (Bibron & Bory de Saint-Vincent, 1833). — North-Western Journal of Zoology, 14 (2) 270—273. [PDF]
Kornilev, Y. V., Popgeorgiev, G., Vacheva, E., Tzankov, N., 2018. First records of melanism (including in tail bifurcation) of lacertid lizards (Reptilia: Lacertidae) in Bulgaria. — North Western Journal of Zoology, 14 (1): 142—144.
Vergilov, V., Zlatkov, B., Tzankov, N., 2017. Hemipenial differentiation in the closely related congeners Ablepharus kitaibelii (Bibron & Bory de Saint-Vincent, 1833), and Ablepharus budaki Göçmen, Kumlutaş & Tosunoğlu, 1996 (Squamata: Sauria: Scincidae). — Herpetozoa, 30 (1/2): 39—48. [PDF]
Koynova, T., Tzankov, N., Popgeorgiev, G., Naumov, B., Natchev, N., 2017. A new distribution record of the Kotschy’s Gecko (Mediodactylus kotschyi) from inland north-eastern Bulgaria. — Herpetology Notes 01/2017: 10: 1—2. [PDF]
Цанков, Н., Стоянов, А., Добрев, Д., Луканов, С., Корнилев, Ю., Андонов, К., Вергилов, В., Попгеоргиев, Г., 2017. Trachemys scripta (Thunberg in Schoepff, 1792). — стр. 110—113. В: Тричкова, Т., Владимиров, В., Томов, Р., Тодоров, М. (ред.): Атлас на инвазивните чужди видове от значение за Европейския съюз, ИБЕИ-БАН, ESENIAS, София, 176 стр. [PDF]