@Article{ BraWir15, author = { Brancolini, Alessio and Wirth, Benedikt }, title = { Equivalent formulations for the branched transport and urban planning problems }, journal = { J. Math. Pures Appl. }, year = { 2016 }, doi = { 10.1016/j.matpur.2016.03.008 }, volume = { 106 }, number = { 4 }, pages = { 695-724 }, URL = { http://cvgmt.sns.it/paper/2796/ }, note = { cvgmt preprint} }