1. Reiner Horst and Hoang Tuy. Global Optimization. Springer-Verlag, Berlin, 1990.
2. R. E. Moore. Interval Analysis. Prentice-Hall, Inc., Englewood Cliffs, 1966.
3. Jon Rokne and T. Wu. The circular complex centered form. Computing, 28: 17–30, 1982.
4. Jon Rokne and T. Wu. A note on the circular complex centered form. Computing, 30: 201–211, 1983.
5. Jarmo T. Alander. An indexed bibliography of genetic algorithms: Years 1957–1993. Art of CAD Ltd., Vaasa (Finland), 1994. (over 3000 GA references).