@article{SagnolBlancoSauvage2018, author = {Guillaume Sagnol and Marco Blanco and Thibaut Sauvage}, title = {The Cone of Flow Matrices: Approximation Hierarchies and Applications}, journal = {Networks}, volume = {72}, number = {1}, pages = {128 -- 150}, doi = {10.1002/net.21820}, year = {2018}, }