1. The normal crying curve: what do we really know?;Barr;Developmental Medicine and Child Neurology,1990a
2. The early crying paradox: a modest proposal;Barr;Human Nature,1990b
3. Nursing interval and maternal responsivity: effect on early infant crying;Barr;Pediatrics,1988
4. Crying in !Kung infants: distress signals in a responsive context;Barr;American Journal of Diseases of Children,1987
5. Feeding and temperament as determinants of early infant cry/fuss behavior;Barr;Pediatrics,1989