@article{GDZPPN002386380,
title = {Extensions of a Theorem of Hellinger and Toeplitz.},
journal = {Mathematische Zeitschrift},
volume = {64},
year = {1956},
pages = {53-57},
zbl = {0072.13201},
url = {http://dml.mathdoc.fr/item/GDZPPN002386380}
}
Taylor, Angus E. Extensions of a Theorem of Hellinger and Toeplitz.. Mathematische Zeitschrift, Tome 64 (1956) pp. 53-57. http://gdmltest.u-ga.fr/item/GDZPPN002386380/