@article{10_4153_CMB_2015_008_7,
     author = {Lewkowicz, Marek Kazimierz},
     title = {Coloring {Four-uniform} {Hypergraphs} on {Nine} {Vertices}},
     journal = {Canadian mathematical bulletin},
     pages = {317--319},
     year = {2015},
     volume = {58},
     number = {2},
     doi = {10.4153/CMB-2015-008-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-008-7/}
}