RT Article T1 Child and Adolescent Research as a Challenge and Opportunity for Social Support Theory, Measurement, and Intervention: And Vice Versa JF Social networks and social support in childhood and adolescence SP 1 OP 22 A1 Nestmann, Frank A1 Hurrelmann, Klaus 1944- LA English YR 1994 UL https://krimdok.uni-tuebingen.de/Record/1525885316 SN 3110143607 K1 Netzwerkforschung K1 Unterstützungsforschung