Planar domain simplification for modeling virtual-solids in plant and machinery layout. - Nickolas S. Sapidis; Gabriel Theodosiou (Comput. Aided Des., 1999)

Informationally-Complete Product Models of Complex Arrangements for Simulation-Based Engineering: Modelling Design Constraints using Virtual Solids. - Nickolas S. Sapidis; Gabriel Theodosiou (Eng. Comput., 2000)

Information Models of Design Constraints for Collaborative Product Development. - Gabriel Theodosiou; Nickolas S. Sapidis; Abdelaziz Bouras (GMP, 2002)

Information models of layout constraints for product life-cycle management: a solid-modelling approach. - Gabriel Theodosiou; Nickolas S. Sapidis (Comput. Aided Des., 2004)