@article{CMH_1957__32_139145,
     author = {Alfred Huber},
     title = {On subharmonic functions and differential geometry in the large.},
     journal = {Commentarii mathematici Helvetici},
     pages = {13--72},
     year = {1957},
     volume = {32},
     zbl = {0080.15001},
     url = {http://geodesic.mathdoc.fr/item/CMH_1957__32_139145/}
}