- Article in journal2001. Detection of Trichinella spiralis antigens in urine of men and animals. Wiadomości Parazytologiczne 47 : 217-225.
- Article in journal2001. Tasiemiec Echinococcus multilocularis występuje w Polsce u jenota. Działalność Naukowa. Wybrane zagadnienia 12 : 78-79.
- Article in journal2000. New data on bats (Chiroptera) hibernating in the Polish part of Białowieża Primeval Forest. Myotis 38 : 47-50.
- Article in journal2000. Activity of bulls during the rut in a free-ranging European bison herd in the Białowieża Primeval Forest - preliminary results. In: Proceedings of International Symposium 'European bison - yesterday, taday and tomorrow' Siauliai, 9-10 December 2000. Siauliai University, Siauliai : 31-35.
- Book chapter2000. Functioning of the European bison population in the Białowieża Primeval Forest. In: Proceedings of International Symposium 'European bison - yesterday, taday and tomorrow' Siauliai, 9-10 December 2000. Siauliai University, Siauliai : 36-41.
- Article in journal2000. Badania nad repertuarem wokalnym młodych nietoperzy oraz relacjami matka-dziecko jako przykłady zastosowania techniki rejestrowania i analizowania d¦więków. Nietoperze 1 : 63-70.
- Article in journal2000. Evolution in the Sorex araneus group: cytogenetic and molecular aspects. Acta Theriologica 45, Suppl. 1 : 1-192.
- Article in journal2000. Diet composition of badgers (Meles meles) in a pristine forest and rural habitats of Poland compared to other European populations. Journal of Zoology, London 250 : 495-505.
- Book chapter2000. Balanoposthitis of the European bison (Bison bonasus). In: Proceedings of International Symposium 'European bison - yesterday, taday and tomorrow' Siauliai, 9-10 December 2000. Siauliai University, Siauliai : 68-73.
- Article in journal2000. Necrobacillosis in free-living male European bison in Poland. Journal of Wildlife Diseases 36 : 248-256.