TY - JOUR A1 - Hlinak, Andreas A1 - Müller, Thomas A1 - Kramer, Matthias A1 - Mühle, Ralf-Udo A1 - Liebherr, Helga A1 - Ziedler, Klaus T1 - Serological survey of viral pathogens in bean and white-fronted geese from Germany Y1 - 1998 SN - 0090-3558 ER -