[Sociologic study on factors influencing birth-rate among student families in Sofia].
D000328:Adult; D001723:Birth Rate; D002031:Bulgaria; D005193:Family Planning Services; D005260:Female; D006801:Humans; D012494:Sampling Studies; D012574:Schools; D012959:Socioeconomic Factors; D013334:Students
Sotsiologichno prouchvane vurkhu faktorite, vliiaeshti na razhdaemostta vsred studenskite semeistva v Sofiia.