Maciej J. Ciesielski, Edwin Kinnen. An optimum layer assignment for routing in ICs and PCBs. In Robert J. Smith II, editor, Proceedings of the 18th Design Automation Conference, DAC '81, Nashville, Tennessee, USA, June 29 - July 1, 1981. pages 733-737, ACM/IEEE, 1981. [doi]
Abstract is missing.