@article{CM_1938__5__433_0, author = {Sidon, S.}, title = {Nachtrag zu meiner Arbeit ``\"Uber unvollst\"andige Orthogonalsysteme''}, journal = {Compositio Mathematica}, volume = {5}, year = {1938}, pages = {433-434}, zbl = {0018.30202}, language = {de}, url = {http://dml.mathdoc.fr/item/CM_1938__5__433_0} }
Sidon, S. Nachtrag zu meiner Arbeit “Über unvollständige Orthogonalsysteme”. Compositio Mathematica, Tome 5 (1938) pp. 433-434. http://gdmltest.u-ga.fr/item/CM_1938__5__433_0/