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@article{MZ_1980__172_172946, author = {Charles T.C. Wall}, title = {Relatively {1-Dimensional} {Complexes.}}, journal = {Mathematische Zeitschrift}, pages = {77--80}, publisher = {mathdoc}, volume = {172}, year = {1980}, zbl = {0428.57005}, url = {http://geodesic.mathdoc.fr/item/MZ_1980__172_172946/} }
Charles T.C. Wall. Relatively 1-Dimensional Complexes.. Mathematische Zeitschrift, Tome 172 (1980), pp. 77-80. http://geodesic.mathdoc.fr/item/MZ_1980__172_172946/