(1)Hájková, P. - Hájek, B. - Bryja, J. - Zemanová B. - Zima, J. (2004). Využitie neinvazívnej genetickej metódy pre výskum vydry riečnej (Lutra lutra). In: Adamec, M. & Urban, P. (eds.), 2004: Výskum a ochrana cicavcov na Slovensku VI, 2003, Banská Bystrica: 157-165. (in Slovak with English summary)

(2)Hájková, P. - Hájek, B. - Zemanová, B. - Roche, K. - Toman, A. - Bryja, J. (2004). Genetic variability and population genetic structure of Eurasian otter (Lutra lutra) sub-populations in the Czech and Slovak Republic. Bulletin Vydra 12-13: 19-23. (in Slovak with English summary)

(3)Hájková, P. - Zemanová, B. - Hájek, B. - Roche, K. - Kučerová, M. - Bryja, J. - Zima, J. (2004). Assessment of population size and structure of Eurasian otter (Lutra lutra) using a non-invasive genetic method - a report on an on-going research project. Bulletin Vydra 12-13: 15-18. (in Slovak with English summary)

(4) Hájková, P. - Bryja, J. - Zemanová, B. - Hájek, B. - Roche, K. - Zima, J. (2004). Genetic structure of Czech and Slovak populations of Eurasian otter (Lutra lutra): DNA typing of spraints and microsatellite variability. Proceedings of IXth International Otter Colloquium, Frostburg, Maryland, USA, 4.6.-10.6.2004 (in press.).

(5) Hájková, P. - Bryja, J. - Zemanová, B. - Zima, J. (2004). Testing the methodology of microsatellite DNA typing of spraints for studying otters in the Czech and Slovak Republics. Proceedings of the European Otter Conference, Isle of Skye, Scotland, 30.6.-5.7.2003 (in press.).

(6) Hájková, P. - Bryja, J. - Zemanová, B. - Hájek, B. - Roche, K. - Roche, M. - Zima, J. (2003). The use of non-invasive microsatellite DNA typing for studying Central European Otter populations. In: Macholán M., Bryja J. & Zima J. (Eds.): European Mammalogy 2003. 4th European Congress of Mammalogy, Brno, Czech Republic, July 27 - August 1, 2003. Program & Abstracts & List of Participants, p. 108.

(7) Hájková, P. - Roche, K. - Kocian, Ľ. (2003). On the use of diagnostic bones of brown trout, Salmo trutta m. fario, grayling, Thymallus thymallus and Carpathian sculpin, Cottus poecilopus in Eurasian otter, Lutra lutra diet analysis. Folia Zool. 52: 389-398. [PDF]

(8) Hájková, P. - Hájek, B. (2002). Potrava vydry riečnej (Lutra lutra) v hornej časti povodia Hornádu. Pp. 69-81. In: Urban P. (ed.): Výskum a ochrana cicavcov na Slovensku V, 2001, ŠOP SR, COPK, Banská Bystrica. (in Slovak with English summary)