[Hygienic assessment of traffic noise in the city of Kirdzhali (People's Republic of Bulgaria)].
Nikolova
Zh S
ZhS
D001336:Automobiles; D002031:Bulgaria; D007221:Industry; D009622:Noise; D009624:Noise, Transportation
Gigienicheskaia otsenka transportnogo shuma g. Kyrdzhali (NRB).