A sensitivity based placer for standard cells. - Bill Halpin; C. Y. Roger Chen; Naresh Sehgal (ACM Great Lakes Symposium on VLSI, 2000)

Timing Driven Placement using Physical Net Constraints. - Bill Halpin; C. Y. Roger Chen; Naresh Sehgal (DAC, 2001)

Force directed mongrel with physical net constraints. - Sung-Woo Hur; Tung Cao; Karthik Rajagopal; Yegna Parasuram; Amit Chowdhary; Vladimir Tiourin; Bill Halpin (DAC, 2003)

Timing driven force directed placement with physical net constraints. - Karthik Rajagopal; Tal Shaked; Yegna Parasuram; Tung Cao; Amit Chowdhary; Bill Halpin (ISPD, 2003)

Detailed Placement with Net Length Constraints. - Bill Halpin; Naresh Sehgal; C. Y. Roger Chen (IWSOC, 2003)

Modeling repeaters explicitly within analytical placement. - Prashant Saxena; Bill Halpin (DAC, 2004)

How accurately can we model timing in a placement engine? - Amit Chowdhary; Karthik Rajagopal; Satish Venkatesan; Tung Cao; Vladimir Tiourin; Yegna Parasuram; Bill Halpin (DAC, 2005)

Timing-Driven Placement. - David Z. Pan; Bill Halpin; Haoxing Ren (Handbook of Algorithms for Physical Design Automation, 2008)