1. Cranial Manipulation Theory and Practice;Chaitow,1999
2. A review of the physiology of cranial osteopathy;Ferguson;J. Osteopath. Med.,2003
3. A study of the rhythmic motions of the living cranium;Fryman;J. Am. Osteopath. Assoc.,1971
4. Cycle-to-cycle variability attributed to the primary respiratory mechanism;Lockwood;J. Am. Osteopath. Assoc.,1998
5. Entrainment and the cranial rhythmic impulse;McPartland;Alternative Therapies,1997