@article{1183535145,
author = {Porter, Tim},
title = {Obstructions in shape theory},
journal = {Bull. Amer. Math. Soc.},
volume = {79},
number = {5},
year = {1973},
pages = { 1206-1209},
language = {en},
url = {http://dml.mathdoc.fr/item/1183535145}
}
Porter, Tim. Obstructions in shape theory. Bull. Amer. Math. Soc., Tome 79 (1973) no. 5, pp. 1206-1209. http://gdmltest.u-ga.fr/item/1183535145/