1. T.M. Cavalier and H.D. Sherali, “Network location problems with continuous link demands:p-medians on a chain, 2-medians on a tree, and 1-median on isolated cycle graphs”, working paper, Department of Industrial Engineering and Operations Research, Virginia Polytechnic Institute and State University (1983).
2. Samuel S. Chiu, “The minisum location problem on an undirected network with continuous link demands”, Presented at the Joint National ORSA/TIMS Meeting, San Diego (November, 1982).
3. J.W. Chrissis, R.P. Davis and D.M. Miller, “The dynamic set covering problem”, paper presented at the TIMS/ORSA Joint National Meeting, New York (1978).
4. J.W. Chrissis, “Locating emergency service facilities in a developing area”,Fire Technology 16(1) (1980) 63–69.
5. D. Erlenkotter, “A dual-based procedure for uncapacitated facility location”,Operations Research 26(6) (1978) 992–1009.