@article{DMGT_1996_16_2_a7,
     author = {Urba\'nski, Sebastian},
     title = {Remarks on 15-vertex (3,3)-ramsey graphs not containing {K₅}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {173--179},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_1996_16_2_a7/}
}