@article{ASENS_1993_4_26_2_175_0, author = {Petersen, Peter and Zhu, Shun-Hui}, title = {An excess sphere theorem}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {175--188}, publisher = {Elsevier}, volume = {Ser. 4, 26}, number = {2}, year = {1993}, doi = {10.24033/asens.1670}, mrnumber = {1209707}, zbl = {0771.53024}, language = {en}, url = {http://archive.numdam.org/articles/10.24033/asens.1670/} }