1. Attachment and loss;Bowlby,1969
2. An attempt to modify the emotional attitudes of infants by the conditioned response technique;Bregman;Journal of Genetic Psychology,1934
3. Responses of one-year-olds to a stranger in a strange situation;Bretherton,1974
4. Experience and temperament in human neonates;Bridger,1968
5. A genetic theory of the emotions;Bridges;Journal of Genetic Psychology,1930