@article{GDZPPN002216574, title = {The Chromatic Number of a Class of Pseudo-2-Manifolds.}, journal = {Manuscripta mathematica}, volume = {7}, year = {1972}, pages = {311-320}, zbl = {0229.05112}, url = {http://dml.mathdoc.fr/item/GDZPPN002216574} }
Dewdney, A.K. The Chromatic Number of a Class of Pseudo-2-Manifolds.. Manuscripta mathematica, Tome 7 (1972) pp. 311-320. http://gdmltest.u-ga.fr/item/GDZPPN002216574/