@article{1028990173, author = {Wilder, R. L.}, title = {Some consequences of a method of proof of J. H. C. Whitehead.}, journal = {Michigan Math. J.}, volume = {4}, number = {2}, year = {1957}, pages = { 27-31}, language = {en}, url = {http://dml.mathdoc.fr/item/1028990173} }
Wilder, R. L. Some consequences of a method of proof of J. H. C. Whitehead.. Michigan Math. J., Tome 4 (1957) no. 2, pp. 27-31. http://gdmltest.u-ga.fr/item/1028990173/