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@article{MS2_1973__33_166314, author = {Tim Porter}, title = {Borsuk's {Theory} of {Shape} and {Cech} {Homotopy.}}, journal = {Mathematica Scandinavica}, pages = {83--89}, publisher = {mathdoc}, volume = {33}, year = {1973}, zbl = {0271.55010}, url = {http://geodesic.mathdoc.fr/item/MS2_1973__33_166314/} }
Tim Porter. Borsuk's Theory of Shape and Cech Homotopy.. Mathematica Scandinavica, Tome 33 (1973), pp. 83-89. http://geodesic.mathdoc.fr/item/MS2_1973__33_166314/