1. Colic and crying syndromes in infants;Barr;Pediatrics,1998
2. The crying of infants with colic: A controlled empirical description;Barr;Pediatrics,1992
3. New evidence on unexplained early crying: its origins, nature and management;Barr,2001
4. Perception of infant crying as an interpersonal event;Boukydis,1985
5. Issues in newborn care;Clemons;Primary Care,2000