1.
Vopr Okhr Materin Det
; 17(9): 12-6, 1972 Sep.
Article
in Russian
| MEDLINE
| ID: mdl-4655220
2.
Vopr Okhr Materin Det
; 16(5): 36-40, 1971 May.
Article
in Russian
| MEDLINE
| ID: mdl-5142472