@article{1102911145, author = {Howland, James S.}, title = {Puiseux series for resonances at an embedded eigenvalue.}, journal = {Pacific J. Math.}, volume = {55}, number = {2}, year = {1974}, pages = { 157-176}, language = {en}, url = {http://dml.mathdoc.fr/item/1102911145} }
Howland, James S. Puiseux series for resonances at an embedded eigenvalue.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 157-176. http://gdmltest.u-ga.fr/item/1102911145/