@article{05636128,
title = {On the essential spectrum of the Jansen-Hess operator for two-electron ions.},
journal = {Mathematical Physics Electronic Journal [electronic only]},
volume = {14},
year = {2008},
zbl = {1175.81209},
language = {en},
url = {http://dml.mathdoc.fr/item/05636128}
}
Jakubassa-Amundsen, D.H. On the essential spectrum of the Jansen-Hess operator for two-electron ions.. Mathematical Physics Electronic Journal [electronic only], Tome 14 (2008) . http://gdmltest.u-ga.fr/item/05636128/