@article{02012568, title = {Local spectral theory for }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2003}, year = {2003}, pages = {2667-2672}, doi = {10.1155/S0161171203012043}, zbl = {1060.47003}, language = {en}, url = {http://dml.mathdoc.fr/item/02012568} }
Elbjaoui, H.; Zerouali, E. H. Local spectral theory for . International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 2667-2672. doi : 10.1155/S0161171203012043. http://gdmltest.u-ga.fr/item/02012568/