@article{CM_1938__5__354_0,
     author = {Freudenthal, Hans},
     title = {Die {Haarschen} {Orthogonalsysteme} von {Gruppencharakteren} im {Lichte} der {Pontrjaginschen} {Dualit\"atstheorie}},
     journal = {Compositio Mathematica},
     pages = {354--356},
     publisher = {Johnson Reprint Corporation},
     volume = {5},
     year = {1938},
     zbl = {0018.39204},
     language = {de},
     url = {http://www.numdam.org/item/CM_1938__5__354_0/}
}