1.
Zentralbl Veterinarmed A
; 18(10): 835-41, 1971 Dec.
Article
in German
| MEDLINE
| ID: mdl-5004607
2.
Dtsch Tierarztl Wochenschr (1946)
; 77(10): 234-6, 1970 May 15.
Article
in German
| MEDLINE
| ID: mdl-5519372