- http://egon.cheme.cmu.edu/ewo/docs/SnyderEWO_081113.pdf
- https://www.youtube.com/watch?v=zw0tqKoPaks
- https://www.youtube.com/watch?v=xJ0-_1jHzZs
- https://github.com/anshul-musing/multi-echelon-inventory-optimization/tree/master
- https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1475469
- https://www.sciencedirect.com/science/article/abs/pii/S0925527322001670
- http://egon.cheme.cmu.edu/ewo/index.html
- Larry Snyder https://coral.ise.lehigh.edu/larry/teaching/