TY  - GEN
AU  - Petkova,L
TI  - [Various problems relating to the birth rate in Bulgaria]
SN  - 0038-5239
PY  - 1986///0219
KW  - Birth Rate
KW  - Bulgaria
KW  - Female
KW  - Humans
KW  - Pregnancy
KW  - Social Problems
N1  - Publication Type: Journal Article
ER  -