@article{02163679, title = {The operator }, journal = {Abstract and Applied Analysis}, volume = {2004}, year = {2004}, pages = {625-634}, doi = {10.1155/S1085337504404011}, zbl = {1065.35171}, language = {en}, url = {http://dml.mathdoc.fr/item/02163679} }
Lasiecka, I.; Triggiani, R. The operator . Abstract and Applied Analysis, Tome 2004 (2004) pp. 625-634. doi : 10.1155/S1085337504404011. http://gdmltest.u-ga.fr/item/02163679/