@article{10_4064_fm_91_3_241_245, author = {Ronald Rosen}, title = {An annulus theorem for suspension spheres}, journal = {Fundamenta Mathematicae}, pages = {241--245}, publisher = {mathdoc}, volume = {91}, number = {3}, year = {1976}, doi = {10.4064/fm-91-3-241-245}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-91-3-241-245/} }