Schijns V E, Wierda C M, van Dam E J, Vahlenkamp T W, Horzinek M C
Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands.
Immunogenetics. 1995;42(5):434-5. doi: 10.1007/BF00179411.