D. Villiers

Rethinking Proof With the Geometer's Sketchpad

D. Villiers, D. Michael, 1999 .

Correction of radially asymmetric lens distortion with a closed form solution and inverse function

D. Villiers, J. Peter, De Villiers, 2008 .

Ischaemia of the colon: an experimental study.

D. Villiers, 1966 .