@article{CM_1937__4__145_0,
     author = {Freudenthal, Hans},
     title = {Entwicklungen von {R\"aumen} und ihren {Gruppen}},
     journal = {Compositio Mathematica},
     pages = {145--234},
     publisher = {Johnson Reprint Corporation},
     volume = {4},
     year = {1937},
     zbl = {0016.28001},
     language = {de},
     url = {http://www.numdam.org/item/CM_1937__4__145_0/}
}