@article{01569512, title = {Mixed }, journal = {Mathematical Problems in Engineering}, volume = {7}, year = {2001}, pages = {557-598}, doi = {10.1155/S1024123X00001484}, zbl = {0968.93026}, language = {en}, url = {http://dml.mathdoc.fr/item/01569512} }
De Farias, D.P.; De Oliveira, M.C.; Geromel, J.C. Mixed . Mathematical Problems in Engineering, Tome 7 (2001) pp. 557-598. doi : 10.1155/S1024123X00001484. http://gdmltest.u-ga.fr/item/01569512/