1. SHARPS: a hierarchical layout system for VLSI;Chiba,1981
2. An automatic/interactive layout planning system for arbitrarily-sized rectangular building blocks;Horng,1981
3. Placement and routing algorithms for hierarchical integrated circuit layout;Preas;Doctoral dissertation Dept of Electrical Engineering, Stanford University, CA, USA,1980
4. Shape determination and placement algorithms for hierarchical integrated circuit layout;Slutz;Doctoral dissertation Department of Electrical Engineering and Computer Science, Stanford University, CA, USA,1980
5. The genealogical approach to the layout problem;Szepieniec,1980