Classification
UMB - Atmospheric chemistry
8
GRA - Meteorology
2
GRAD - Earth atmosphere, weather
2
UAN - Environment - mathematical methods, computer applications
2
UMC - Atmospheric physics
2
UMD - Atmospheric models
2
UMN - Air pollution control and measurement
2
UAM - Environmental models
1
UCS - Environmental chemistry
1
UMK - Air pollution - general aspects
1
UMNC - Air pollution control by chemical analytical methods
1