Classification
UPN - Water protection, water quality, clean water
UPW - Drinking water
4
UPCE - Water chemistry
2
UPK - Water resources, water supply
2
UPP - Water pollution
2
CHRV - Water and its properties
1
GMAB - Hydrogeochemistry
1
UPA - Water - handbooks
1
UPC - Water - general aspects
1
UPT - Water pollution control and measurement
1
UPTF - Organic pollutants in water
1
UPTK - Volatile pollutants in water
1
UPTN - Inorganic pollutants in water
1
YEC - Law on waters
1