1.
Zdrav Prac
; 27(5): 294-6, 1977 May.
Article
in Czech
| MEDLINE
| ID: mdl-242496
2.
Zdrav Prac
; 26(5): 290-4, 1976 May.
Article
in Czech
| MEDLINE
| ID: mdl-1051253
3.
Zdrav Prac
; 25(7): 408-10, 1975 Jul.
Article
in Czech
| MEDLINE
| ID: mdl-769407