1. Assad AA (1978) Multicommodity network flows—a survey. Networks 8(1):37–91
2. Barr R, Elam J, Glover F, Klingman D (1978) A network augmenting path basis algorithm for transshipment problems. In: Fiacco A, Kortanek K (eds) Extremal methods and systems analysis. Springer, Berlin, pp 250–274
3. Du Y, Kochenberger G, Glover F, Lu ZP, Liu DH, Hulandageri A (2020) Optimal solutions to the minimum sum coloring problem: a comparison of alternative models. Working paper, University of Colorado Denver
4. Fitzpatrick L (2019) A complete beginner’s guide to atomic swaps. Forbes, Sept 2, 2019 https://www.forbes.com> sites> lukefitzpatrick
5. Fulkerson DR, Ford LR Jr (1962) Flows in networks. Rand Corporation, Santa Monica