Borisovsky, Pavel, Anton Eremeev, Sergei Hrushev, Vadim Teplyakov, and Mikhail Vorozhtsov. 2019. “On Three Approaches to Length-Bounded Maximum Multicommodity Flow With Unit Edge-Lengths”. Yugoslav Journal of Operations Research 29 (1):93-112. https://doi.org/10.2298/YJOR181015034B.