@article{10_1090_S1079_6762_06_00161_2,
     author = {Kozlov, Dmitry},
     title = {Cobounding odd cycle colorings},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {53--55},
     publisher = {mathdoc},
     volume = {12},
     year = {2006},
     doi = {10.1090/S1079-6762-06-00161-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-06-00161-2/}
}