@article{1103034175, author = {Bing, R. H.}, title = {The simple connectivity of the sum of two disks.}, journal = {Pacific J. Math.}, volume = {14}, number = {4}, year = {1964}, pages = { 439-455}, language = {en}, url = {http://dml.mathdoc.fr/item/1103034175} }
Bing, R. H. The simple connectivity of the sum of two disks.. Pacific J. Math., Tome 14 (1964) no. 4, pp. 439-455. http://gdmltest.u-ga.fr/item/1103034175/