@inproceedings{inproceedings6b337787, title = {On the structure of the monotone asymmetric travelling salesman polytope II: hypotraceable facets}, author = {Grötschel , Martin and Wakabayashi, Yoshiko}, year = {1981}, doi = {10.1007/BFb0120923}, publisher = {Springer}, booktitle = {Mathematische Optimierung} }