Interactive constraint-based solid modeling using allowable motion. - Mingxian Fa; Terrence Fernando; Peter M. Dew (Solid Modeling and Applications, 1993)

Direct 3D Manipulation Techniques for Interactive Constraint-based Solid Modelling. - Mingxian Fa; Terrence Fernando; Peter M. Dew (Comput. Graph. Forum, 1993)

A Shared Virtual Workspace for Constraint-based Solid Modelling. - Terrence Fernando; Peter M. Dew; Mingxian Fa; John Maxfield; Neil Hunter (Virtual Environments, 1995)