1. Integer rounding for polymatroid and branching optimization problems;Baum;SIAM Journal on Algorithms and Discrete Methods,1981
2. C. Berge, E.L. Johnson, Coloring the edges of a hypergraph and linear programming techniques, Research Report CORR 76/4, Department of Combinatorics and Optimization, University of Waterloo, 1976.
3. A. Diegel, Integer LP solution for large trim problem, Working Paper, University of Natal, 1988.
4. Linear Programming: Theory and Extensions;Dantzig,2003
5. The trim problem;Eisemann;Management Science,1957