@article{RO_2015__49_4_651_0,
     author = {Karpinski, Marek and Schmied, Richard},
     title = {Approximation hardness of graphic {TSP} on cubic graphs},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {651--668},
     publisher = {EDP-Sciences},
     volume = {49},
     number = {4},
     year = {2015},
     doi = {10.1051/ro/2014062},
     mrnumber = {3350130},
     zbl = {1341.68308},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2014062/}
}