@article{GDZPPN002206307,
title = {Perturbation results for Stark effect resonances.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {394},
year = {1989},
pages = {168-179},
zbl = {0655.35061},
url = {http://dml.mathdoc.fr/item/GDZPPN002206307}
}
Jensen, Arne. Perturbation results for Stark effect resonances.. Journal für die reine und angewandte Mathematik, Tome 394 (1989) pp. 168-179. http://gdmltest.u-ga.fr/item/GDZPPN002206307/