Šmiga, L., Fedorčák, J., Faltýnková, A., Stefanov, T., Bystrianska, J., Halačka, K., Koščová, L., Koščo, J., 2020. Endohelminth Parasites in Loaches Cobitis spp. (Actinopterygii: Cobitidae), with the First Record of Allocreadium transversale (Rudolphi, 1802) (Digenea: Allocreadiidae) in Bulgaria. — Acta zoologica bulgarica.
Bogutskaya, N. G., Jelić, D., Vucić, M., Jelić, M., Diripasko, O., Stefanov, T., Klobučar, G., 2020. Description of a new species of Phoxinus from the upper Krka River (Adriatic Basin) in Croatia (Actinopterygii: Leuciscidae), first discovered as a molecular clade. — Journal of Fish Biology, 96: 378—393.
Stefanov, T., 2019. New data on morphology and taxonomy of the fishes from genus Alburnoides (Actinopterygii, Cyprinidae) in South-eastern Balkans (Aegean and Black Sea basins). — 11th Seminar of Ecology with international participation. Union of scientists in Bulgaria, section Biology & IBER-BAS. Proceedings, 21—31.
Stefanov, T., 2019. Ichthyofauna of the Bulgarian Stretch of the Danube River and Lower Courses of Its Tributaries. — In: Shurulinkov, et al. (eds), Biodiversity of the Bulgarian-Romanian Section of the Lower Danube. Nova Science Publishers: 241—281.
Bogutskaya, N. G., Stefanov, T., Naseka, A. M., Diripasko, O. A., 2019. A recent record of Romanogobio antipai (Actinopterygii, Cyprinidae, Gobioninae) from the Danube River in Bulgaria. — ZooKeys, 825: 105—122.
Bartáková, V., Bryja, J., Šanda, R., Bektas, U., Stefanov, T., Choleva, L., Smith, C., Reichard, M., 2019. High cryptic diversity of bitterling fish in the southern West Palearctic. — Molecular Phylogenetics and Evolution, 133: 1—11.
Zhelev, Z. M., Tsekov, A. G., Popgeorgiev, G. S., Angelov, M. V., Boyadzhiev, P. S., Stefanov, T. R., 2018. Ichthyofauna in the Lower Course of the Sazliyka River, Southern Bulgaria: Composition, Diversity, Seasonal Dynamics and Conservation Significance. — Acta zoologica bulgarica, 70 (3): 331—338.
Stoianova, D., Evtimova, V., Kenderov, L., Varadinova, E., Kerakova, M., Ihtimanska, M., Stefanov, T., Soufi, R., Tyufekchieva, V., Vidinova, Y., Simov, N., 2018. New Localities and Habitat Suitability Modelling for the Riverine Water Bug Aphelocheirus aestivalis (Fabricius, 1794) (Heteroptera: Aphelocheiridae) in Northern and Eastern Bulgaria. — Acta zoologica bulgarica, 70 (3): 415—431.
Stefanov, T., Kutsarov, Y., 2018. First Record of Brauner’s Tadpole-goby Benthophiloides brauneri Beling & Iljin, 1927) (Actinopterygii: Gobiidae), in the Bulgarian Stretch of the Danube River. — Acta zoologica bulgarica, 70 (4): 599—602.
Honţ, Ş., Paraschiv, M., Iani, M. I., Stefanov, T., Lendhardt, M., Oprea, L., 2018. Long Distance Migration of Beluga (H. huso) and Stellate Sturgeon (Acipenser stellatus) in Lower Danube River in Relation with Iron Gate II Dam. — Bulletin UASVM, Animal Science and Biotechnologies, 75 (1): 28—39.