1. J.L. Balintfy, “Menu planning by computer”,The Communications of ACM 7 (1964) 255–259.
2. E.M.L. Beale and J.J.H. Forrest, “Global optimization using special ordered sets”,Mathematical Programming 10 (1976) 52–69.
3. E.M.L. Beale and J.A. Tomlin, “Special facilities in a general mathematical programming system for nonconvex problems using ordered sets of variables”, in: J. Lawrence, ed.,Procedings of the fifth international conference on operational research (Tavistock Publications, London, 1970), pp. 447–454.
4. R.S. Dembo, “Random generation of problems with a given structure”, COAL Newsletter (January 1980).
5. R.S. Dembo and J.M. Mulvey, “On the analysis and comparison of mathematical programming techniques”, in: W.W. White, ed.,Computers and mathematical programming (National Bureau of Standards Special Publication 502, Washington, DC 1978) pp.106–116.