@article{GDZPPN002062623,
title = {Strange inner product spaces.},
journal = {Commentarii mathematici Helvetici},
volume = {52},
year = {1977},
pages = {491-496},
zbl = {0409.46023},
url = {http://dml.mathdoc.fr/item/GDZPPN002062623}
}
Baur, Walter; Gross, Herbert. Strange inner product spaces.. Commentarii mathematici Helvetici, Tome 52 (1977) pp. 491-496. http://gdmltest.u-ga.fr/item/GDZPPN002062623/