Liu, Clive K. (1984) Drawings as Models for Design: A Computer Drawing System to Build Models Supporting Design Process through Abstractions. UNSPECIFIED thesis, UNSPECIFIED.
Eastman, Charles M. and Liu, Clive K. (1981) The C-MU Drafting System. In: UNSPECIFIED.
Liu, Clive K. (1981) A Graphic Processor for Computer-Aided Engineering Drawing. In: UNSPECIFIED.
Liu, Clive K. and Eastman, Charles M. (1981) Object Grammars : Language for the Generation of Masonry Designs. In: UNSPECIFIED.
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