Authors: Peper, U Gebhardt, UK Herbst, W Kaleta, EF

Citation: U. Peper et al., The impact of microbial agents in psittacine birds with and without clinical signs. 2: Virus isolations, TIER UMSCH, 54(2), 1999, pp. 90

Authors: Gebhardt, UK Peper, U Balks, E Kostka, V Kaleta, EF

Citation: Uk. Gebhardt et al., Studies of the relationship between bacteria and fungi isolated from clinically healthy psittacines and from birds with clinical signs, TIER UMSCH, 54(1), 1999, pp. 20