1. New concept in femoral head replacement: mechanics of the device;Averill;Bull. Hosp. J. Dis. Orthop. Inst.,1977
2. Single-assembly total hip prosthesis: preliminary report;Bateman;Orthop. Dig.,1974
3. A study of 75 two-component hemi-arthroplasties. Do they behave as Thompson's, total hips or true bi-polar prostheses?;Brueton;J. Bone Joint Surg.,1987
4. Arthroplasty of the hip. A new operation;Charnley;Lancet,1961