Spassov, N., Ignatov, A., Acosta-Pankov, I., 2016. On the status of the leopard in Turkey, again. — Cat news No 64, Autumn 2016, ISSN 1027-2992.
Spassov, N., Ignatov, A., Acosta-Pankov, I., 2015. The Story of the Turkish Dhole. Exploring and documenting diversity in nature. — CETAF Newsletter, October 2015.
Ignatov, A., Wetton, P., Beshkov, S., 2013. Chilades trochylus (Freyer, [1845]) (Lep.: Lycaenidae) confirmed for the Bulgaria fauna and doubt cast on earlier records of this and other species. — Entomologist’s Rec. J. Var., 125: 119—122. [PDF]
Spiridonov, J., Iankov, P., Georgiev, D., Nikolov, S., Delov, V., Barov, B., Ignatov, A., Nedialkov, R., Delchev, K., 2007. Pirin. — pp: 316—319, In: Kostadinova, I., Gramatikov, M. (eds) Important Bird Areas in Bulgaria and NATURA 2000. Bulgarian Society for the Protection of Birds, Sofia.
Simov, N., Ignatov, А., 2007. To recognize a wrabler and one poorly known ornitological theory. — For the birds, 2: 26. (in Bulgarian).
Ignatov, A., Spiridonov, G., Iankov, P., 2007. Long-eared Owl Asio otus. — pp: 334—335, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Ignatov, A., Kantrandjiev, V., 2007. Great Spotted Cuckoo Glamator glandarius. — pp: 316—317, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Ignatov, A., Iankov, P., Antonov, A., Kanchev, Ts., Spasova, V., 2007. Zlatiata. — pp: 146—148, In: Kostadinova, I., Gramatikov, M. (eds) Important Bird Areas in Bulgaria and NATURA 2000. Bulgarian Society for the Protection of Birds, Sofia.
Ignatov, A., Georgiev, D., 2007. Hen Harrier Circus cyaneus. — pp: 142—143, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Ignatov, A., 2007. Red Kite Milvus milvus. — pp: 126—127, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Iankov, P., Ignatov, A., 2007. Rosy Starling Sturnus roseus. — pp: 592—593, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Iankov, P., Gramatikov, M., Petkov, S., Alibashev, M., Hristov, I., Ivanov, B., Ruskov, K., Ignatov, A., 2007. Vitosha. — pp: 394—397, In: Kostadinova, I., Gramatikov, M. (eds) Important Bird Areas in Bulgaria and NATURA 2000. Bulgarian Society for the Protection of Birds, Sofia.
Iankov, P., Delov, V., Barov, B., Ignatov, A., Robertson, T., Nedialkov, R., Velkov, S., Nikolov, I., Nikolov, B., Shurulinkov, P., Karaivanov, N., 2007. Melnik pyramids. — pp: 366—368, In: Kostadinova, I., Gramatikov, M. (eds) Important Bird Areas in Bulgaria and NATURA 2000. Bulgarian Society for the Protection of Birds, Sofia.
Dimchev, I., Hristov, Y., Kostadinova, I., Iankov, P., Ruskov, K., Georgiev, D., Petkov, N., Georgiev, A., Profirov, L., Delov, V., Barov, B., Ignatov, A., Andova, S., Angelov, I., Aleksandrova, M., Waterhouse, M., Carty, P., Robertson, T., Nedialkov, R., Ilieva, E., Zlatanova, D., Zareva, K., 2007. Bakarlaka. — pp: 383—386, In: Kostadinova, I., Gramatikov, M. (eds) Important Bird Areas in Bulgaria and NATURA 2000. Bulgarian Society for the Protection of Birds, Sofia.
Bedev, K., Ignatov, A., Stoychev, S., 2007. Alpine Accentor Prunella collaris. — pp: 422—423, In: Iankov, P. (ed.) Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Sofia.
Iankov, P., Andreev, L., Gerassimov, G., Ignatov, A., 1994. Spring migration of the soaring birds over Sofia plain in 1986. — BAS Ecology, Sofia, 25: 14—24.