AVZU - Czarnik,U.; Zabolewicz,T.; Strychalski,J.; Grzybowski,G.; Bogusz,M.; Walawski,K. - Deletion/insertion polymorphism of the prion protein gene (PRNP) in Polish Holstein-Friesian cattle - Journal of Applied Genetics 2007; 48(1): 69-71
AOOM - Walawski,K.; Czarnik,U.; Wojciechowski,R.; Pareek,C.S. - Abnormal segregation of prion protein octapeptide-repeat alleles in cattle - Journal of Applied Genetics 2003; 44(3): 375-8
ANZP - Walawski,K.; Czarnik,U. - Prion octapeptide-repeat polymorphism in Polish Black-and-White cattle - Journal of Applied Genetics 2003; 44(2): 191-5