Sroufe, 1977, Child Dev, 48, 1184, 10.2307/1128475
Ainsworth, 1969, Child Dev, 40, 969, 10.2307/1127008
Sroufe, 1986, J Child Psychol Psychiatry, 27, 841, 10.1111/j.1469-7610.1986.tb00203.x
Carlson, 1989, Dev Psychol, 25, 525, 10.1037/0012-1649.25.4.525
Crittenden, 1981, Merrill-Palmer Q, 27, 201