1. Tam-Anh Chu. Synthesis of Self-Timed VLSI Circuits from Graph-theoretic Specifications. PhD thesis, Dept. of EECS, MIT, Jun. 1987.
2. M.R. Garey and D.S. Johnson. Computers and Intractability: A Guide to the Theory of NP-Completeness. W.H. Freeman and Company, San Francisco, 1979.
3. F. Glover. Tabu search (I). ORSA Journal on Computing, 1(3):190–206, 1989.
4. J. Gu. Optimization by multispace search. Technical Report UCECE-TR-90-001, Dept. of Electrical and Computer Engineering, Univ. of Calgary, Mar. 1990.
5. J. Gu. Optimization by simulated evolution. Technical Report UCECE-TR-90-004, Dept. of Electrical and Computer Engineering, Univ. of Calgary, Mar. 1990.