1.
Dtsch Tierarztl Wochenschr
; 91(11-12): 408-9, 1984 Nov 22.
Article
in German
| MEDLINE
| ID: mdl-6397345
2.
Berl Munch Tierarztl Wochenschr
; 96(9): 312-6, 1983 Sep 01.
Article
in German
| MEDLINE
| ID: mdl-6639640