Über Orthogonalsysteme
Compositio Mathematica, Tome 7 (1940), pp. 372-375.
@article{CM_1940__7__372_0,
     author = {Sidon, S.},
     title = {\"Uber {Orthogonalsysteme}},
     journal = {Compositio Mathematica},
     pages = {372--375},
     publisher = {Johnson Reprint Corporation},
     volume = {7},
     year = {1940},
     zbl = {0023.02503},
     mrnumber = {1995},
     language = {de},
     url = {http://archive.numdam.org/item/CM_1940__7__372_0/}
}
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VL  - 7
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UR  - https://zbmath.org/?q=an%3A0023.02503
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LA  - de
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Sidon, S. Über Orthogonalsysteme. Compositio Mathematica, Tome 7 (1940), pp. 372-375. http://archive.numdam.org/item/CM_1940__7__372_0/