TY  - JOUR
A1  - Uhlendorff, Harald
A1  - Oswald, Hans
T1  - Freundeskreise und Cliquen im frühen Jugendalter
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Krappmann, Lothar
A1  - Uhlendorff, Harald
A1  - Oswald, Hans
T1  - Qualities of Childrenïs Friendships in Middle Childhood in East- and West Berlin
Y1  - 1999
SN  - 3-11-016500-7
ER  - 
TY  - JOUR
A1  - Uhlendorff, Harald
A1  - Krappmann, Lothar
A1  - Oswald, Hans
T1  - Familie in Ost- und West-Berlin : Erziehungseinstellungen und Kinderfreundschaften
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Oswald, Hans
A1  - Krappmann, Lothar
A1  - Uhlendorff, Harald
A1  - Weiss, Karin
T1  - Social relationships and support among peers during middle childhood
Y1  - 1994
ER  -