@article{AM2_1992__43_1_137442,
     author = {Geoff Whittle},
     title = {A geometric theory of hypergraph colouring.},
     journal = {Aequationes mathematicae},
     pages = {45--58},
     year = {1992},
     volume = {43},
     number = {1},
     zbl = {0768.05026},
     url = {http://geodesic.mathdoc.fr/item/AM2_1992__43_1_137442/}
}