High-level design using HELIX. - David R. Coelho (ACM Conference on Computer Science, 1985)

A State of the Art VHDL Simulator. - David R. Coelho; Alec G. Stanculescu (COMPCON, 1988)

VHDL: A Call for Standards. - David R. Coelho (DAC, 1988)

A VHDL Standard Package for Logic Modeling. - David R. Coelho (IEEE Des. Test Comput., 1990)