1. The knapsack sharing problem;Brown;Operation Research,1979
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3. R.L. Francis, A simple graphical procedure to estimate the minimum time to evacuate a building, Society of Fire Protection Engineers, Technology Report 1979-5, 1979, 14p.
4. A ‘Uniformity principle’ for evacuation route allocation;Francis;Journal of Research of National Bureau of Standards,1981
5. Network models for building evacuation;Francis;Management Science,1982