R. C. Hillyard

Geometric modelling in ALGOL 68

I. C. Braid, R. C. Hillyard, 1977 .

Characterizing non-ideal shapes in terms of dimensions and tolerances

I. C. Braid, R. C. Hillyard, I. Braid, 1978, SIGGRAPH.

Application of Volumetric Modeling to Mechanical Design and Analysis

R. C. Hillyard, D. L. Dewhirst, 1981, 18th Design Automation Conference.

Analysis of dimensions and tolerances in computer-aided mechanical design

R. C. Hillyard, I. Braid, 1978 .

Geometric modelling in ALGOL 68

I. C. Braid, R. C. Hillyard, I. Braid, 1977, Strathclyde ALGOL 68 Conference.