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@article{DCG_1987__2_131020, author = {D.W. Barnette}, title = {Generating {Closed} {2-Cell} {Embeddings} in the {Torus} and the {Projective} {Plane.}}, journal = {Discrete & computational geometry}, pages = {233--248}, publisher = {mathdoc}, volume = {2}, year = {1987}, zbl = {0614.51008}, url = {http://geodesic.mathdoc.fr/item/DCG_1987__2_131020/} }
D.W. Barnette. Generating Closed 2-Cell Embeddings in the Torus and the Projective Plane.. Discrete & computational geometry, Tome 2 (1987), pp. 233-248. http://geodesic.mathdoc.fr/item/DCG_1987__2_131020/