@article{02168695, title = {Spectral properties of the Klein--Gordon }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2004}, year = {2004}, pages = {1437-1445}, doi = {10.1155/S0161171204203088}, zbl = {1082.47002}, language = {en}, url = {http://dml.mathdoc.fr/item/02168695} }
Başcanbaz-Tunca, Gülen. Spectral properties of the Klein–Gordon . International Journal of Mathematics and Mathematical Sciences, Tome 2004 (2004) pp. 1437-1445. doi : 10.1155/S0161171204203088. http://gdmltest.u-ga.fr/item/02168695/