Browse
All of KOBRACommunities & CollectionsBy Issue Date
Authors
Titles
Keyword (DDC)Keyword (GND)Publication type
Language
Open access
This CommunityBy Issue Date
Authors
Titles
Keyword (DDC)Keyword (GND)Publication type
Language
Open access
Discover
-
Date Issued
1989 (6) 1988 (2) 1987 (5) 1986 (5) 1985 (2) 1984 (1) 1983 (2) 1982 (2) 1981 (4) 1980 (2) -
Publication type
Aufsatz (31)
- Keyword (DDC)370 Education (31)630 Agriculture (2)
-
Open access
open access (31)