1. Kuhn, H.W.: On the origin of the Hungarian method. Hist. Math. Program. 77–81 (1991)
2. Schrijver, A.: Combinatorial Optimization: Polyhedra and Efficiency, vol. 24, p. 2. Springer, Heidelberg (2003)
3. Orden, A.: The transhipment problem. Manag. Sci. 2, 276–285 (1956)
4. Hall, P.: On representatives of subsets. In: Classic Papers in Combinatorics, pp. 58–62 (1987)
5. Miller, G.A.: On a method due to Galois. Q. J. Pure Appl. Math. 41, 382–384 (1910)