1. Sleep states in premature infants;Parmelee;Dev Med Child Neurol,1967
2. Fetal breathing and behavior measured through a double-wall Plexiglas window in sheep;Rigatto;J Appl Physiol,1986
3. Ventilatory response to 100% and 15% O2 during wakefulness and sleep in preterm infants;Rigatto;Early Hum Dev,1982
4. Sleep cycle characteristics in infants;Stern;Pediatrics,1969
5. Respiration and wakefulness in man;Bülow;Acta Physiol Scand Suppl,1963