1. Als, H. (1986). A synactive model of neonatal behavioural organization: framework for the assessment of neurobehavioural development in the premature infant and for support of infants and parents in the neonatal intensive care environment. Physical and Occupational Therapy in Pediatrics, 6, 3-53.
2. Anderson, G., & Vidyasagar, D. (1979). Development of sucking in premature infants from 1 to 7 days post birth. Birth Defects: Original Articles Series, 15, 145-71.
3. Bancalari, E., & Gerhardt, T. (1986). Bronchopulmonary dysplasia. Pediatric Clinics of North America, 33, 1-23.
4. Bernbaum, J., Pereira, G., Watkins, J., & Peckham, G. (1983). Non-nutritive sucking during gavage feeding enhances growth and maturation in premature infants. Pediatrics, 71, 41-5.
5. Collinge, J., Bradley, K., & Perks, C. (1982). Demand versus scheduled feeding for preterm infants. Journal of Obstretic, Gynecologic and Neonatal Nursing, 90, 362-7.