[Relations between the decrease of population and the ecological situation in the district of Jicin].
Ctrnact
P
P
Vidlakova
O
O
D003604:Czechoslovakia; D019049:Developed Countries; D004467:Economics; D005060:Europe; D005061:Europe, Eastern; D012922:Social Change
Czechoslovakia; Developed Countries; Eastern Europe; Economic Factors; Europe; Social Development