A linear-time heuristic for rectilinear Steiner trees. - Forbes D. Lewis; Wang Chia-Chi Pong; Nancy K. Van Cleave (Great Lakes Symposium on VLSI, 1991)

Optimum Steiner tree generation. - Forbes D. Lewis; Wang Chia-Chi Pong; Nancy K. Van Cleave (Great Lakes Symposium on VLSI, 1992)

A Negative Reinforcement Method for PGA Routing. - Forbes D. Lewis; Wang Chia-Chi Pong (DAC, 1993)

Local improvement in Steiner trees. - Forbes D. Lewis; Wang Chia-Chi Pong; Nancy K. Van Cleave (Great Lakes Symposium on VLSI, 1993)