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adolescent (2) |
Aggression (1) |
aggression (1) |
all-day school (1) |
Berlin (1) |
Bildungschance (1) |
Brandenburg (1) |
Bundesrepublik Deutschland (4) |
cooperation (1) |
DDR (1) |
adolescent (2) |
Aggression (1) |
aggression (1) |
all-day school (1) |
Berlin (1) |
Bildungschance (1) |
Brandenburg (1) |
Bundesrepublik Deutschland (4) |
cooperation (1) |
DDR (1) |