RT Article T1 Infants at social risk: relations among infant maltreatment, maternal behavior and infant attachment behavior JF Developmental psychology VO 23 IS 2 SP 223 OP 232 A1 Lyons-Ruth, Karlen A1 Connell, David B. LA English YR 1987 UL https://krimdok.uni-tuebingen.de/Record/1627040927 K1 Mißbrauch K1 Kinder K1 Kleinkinder