@article{COCV_2009__15_4_895_0,
     author = {Valkonen, Tuomo and K\"arkk\"ainen, Tommi},
     title = {Continuous reformulations and heuristics for the euclidean travelling salesperson problem},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {895--913},
     publisher = {EDP-Sciences},
     volume = {15},
     number = {4},
     year = {2009},
     doi = {10.1051/cocv:2008056},
     mrnumber = {2567251},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv:2008056/}
}