@article{MM2_1970__2_153993,
     author = {Hermann Karcher},
     title = {Anwendungen der {Alexandrowschen} {Winkelvergleichss\"atze.}},
     journal = {Manuscripta mathematica},
     pages = {77--102},
     publisher = {mathdoc},
     volume = {2},
     year = {1970},
     zbl = {0185.25803},
     url = {http://geodesic.mathdoc.fr/item/MM2_1970__2_153993/}
}