1991, Volume 96, Issue 4
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Trojzemí upon Nisa - the Region of International Co-operation
Václav Poštolka
pp. 210-218 -
Migration in the Northbohemian Region in 1983 - 1988
Miloslav Šašek
pp. 219-229 -
State, Development and Outlook of the Land Use in the Districts of Liberec and Jablonec
Ivan Bičík
pp. 230-239 -
Selected Environmental Problems of the Town of Liberec
Jiří Anděl
pp. 240-247
