@article{1250522469,
author = {Sakai, K\^okichi},
title = {On quasi-positive definite functions and unitary representations of groups in Pontrjagin spaces},
journal = {J. Math. Kyoto Univ.},
volume = {19},
number = {3},
year = {1979},
pages = { 71-90},
language = {en},
url = {http://dml.mathdoc.fr/item/1250522469}
}
Sakai, Kôkichi. On quasi-positive definite functions and unitary representations of groups in Pontrjagin spaces. J. Math. Kyoto Univ., Tome 19 (1979) no. 3, pp. 71-90. http://gdmltest.u-ga.fr/item/1250522469/