@article{MAN_1954__127_160365,
     author = {H. Meschkowski},
     title = {Beitr\"age zur {Theorie} der {Orthonormalsysteme.}},
     journal = {Mathematische Annalen},
     pages = {107--129},
     publisher = {mathdoc},
     volume = {127},
     year = {1954},
     zbl = {0055.07205},
     url = {http://geodesic.mathdoc.fr/item/MAN_1954__127_160365/}
}