References
1. Bowles C A functional orientation for technic Academy of Applied Osteopathy Year Book part 1:177-191 1955 & part 2:107-114 1956 & part 3:53-58 1957

2. Hoover H V Functional technique Academy of Applied Osteopathy Yearbook 1957 pp142-146

3. Johnston W Strategy of a functional approach in acute knee problems American Academy of Applied Osteopathy Yearbook 1964 pp168-1744

4. Johnston W Robertson A Stiles E Finding a common denominator American Academy of Applied Osteopathy Yearbook 1969 pp5-15

5. Johnston W Segmental Definition Parts 1 & 2 J American Osteopathic Association January 1988 and February 1988

6. Greenman P Principles of Manual Medicine Williams and Wilkins 1989

7. Hoover H V A method for teaching Functional Technic American Academy of Applied Osteopathy 1969 pp147-150