@article{CMH_1961__35_139206,
     author = {Wilhelm Klingenberg},
     title = {\"Uber {Riemannsche} {Mannigfaltigkeiten} mit positiver {Kr\"ummung.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {47--54},
     publisher = {mathdoc},
     volume = {35},
     year = {1961},
     zbl = {0133.15005},
     url = {http://geodesic.mathdoc.fr/item/CMH_1961__35_139206/}
}