@article{03610116, title = {Explicit }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {1}, year = {1978}, pages = {21-30}, doi = {10.1155/S0161171278000034}, zbl = {0393.35007}, language = {en}, url = {http://dml.mathdoc.fr/item/03610116} }
Kuttler, J.R.; Sigillito, V.G. Explicit . International Journal of Mathematics and Mathematical Sciences, Tome 1 (1978) pp. 21-30. doi : 10.1155/S0161171278000034. http://gdmltest.u-ga.fr/item/03610116/