D. Dowson

A comparison of friction in hydrogel and polyurethane materials for cushion-form joints

D. Dowson, J. Fisher, L. Caravia, 1993 .

Observations of residual sub-surface shear strain in the ultrahigh molecular weight polyethylene acetabular cups of hip prostheses

B. Wroblewski, G. Isaac, J. R. Cooper, 1994 .