@article{RSMUP_2003__110__97_0, author = {Bressan, Alberto}, title = {A lemma and a conjecture on the cost of rearrangements}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, pages = {97--102}, publisher = {Seminario Matematico of the University of Padua}, volume = {110}, year = {2003}, zbl = {1114.05002}, mrnumber = {2033002}, language = {en}, url = {http://archive.numdam.org/item/RSMUP_2003__110__97_0/} }