Lower curvature bounds, Toponogov's theorem, and bounded topology
Annales scientifiques de l'École Normale Supérieure, Serie 4, Volume 18 (1985) no. 4, p. 651-670 
@article{ASENS_1985_4_18_4_651_0,
     author = {Abresch, Uwe},
     title = {Lower curvature bounds, Toponogov's theorem, and bounded topology},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     publisher = {Elsevier},
     volume = {Ser. 4, 18},
     number = {4},
     year = {1985},
     pages = {651-670},
     doi = {10.24033/asens.1499},
     zbl = {0595.53043},
     mrnumber = {87j:53058},
     language = {en},
     url = {http://www.numdam.org/item/ASENS_1985_4_18_4_651_0}
}

Abresch, Uwe. Lower curvature bounds, Toponogov's theorem, and bounded topology. Annales scientifiques de l'École Normale Supérieure, Serie 4, Volume 18 (1985) no. 4, pp. 651-670. doi : 10.24033/asens.1499. http://www.numdam.org/item/ASENS_1985_4_18_4_651_0/

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