@article{1255632508,
author = {Segal, I. E.},
title = {Mathematical characterization of the physical vacuum for a linear Bose-Einstein field},
journal = {Illinois J. Math.},
volume = {6},
number = {1},
year = {1962},
pages = { 500-523},
language = {en},
url = {http://dml.mathdoc.fr/item/1255632508}
}
Segal, I. E. Mathematical characterization of the physical vacuum for a linear Bose-Einstein field. Illinois J. Math., Tome 6 (1962) no. 1, pp. 500-523. http://gdmltest.u-ga.fr/item/1255632508/