@article{ASENS_1997_4_30_3_339_0, author = {Lang, Urs and Schroeder, Viktor}, title = {Quasiflats in Hadamard spaces}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, volume = {30}, year = {1997}, pages = {339-352}, doi = {10.1016/s0012-9593(97)89923-5}, mrnumber = {98b:53035}, zbl = {0876.53050}, language = {en}, url = {http://dml.mathdoc.fr/item/ASENS_1997_4_30_3_339_0} }
Lang, Urs; Schroeder, Viktor. Quasiflats in Hadamard spaces. Annales scientifiques de l'École Normale Supérieure, Tome 30 (1997) pp. 339-352. doi : 10.1016/s0012-9593(97)89923-5. http://gdmltest.u-ga.fr/item/ASENS_1997_4_30_3_339_0/
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