@article{04143620, title = {Eigenvalues of the time-dependent fluid flow problem. I.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {139-144}, doi = {10.1155/S0161171290000187}, zbl = {0697.76034}, language = {en}, url = {http://dml.mathdoc.fr/item/04143620} }
Zayed, El-Sayed M.; Elshehawey, El-Sayed F. Eigenvalues of the time-dependent fluid flow problem. I.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 139-144. doi : 10.1155/S0161171290000187. http://gdmltest.u-ga.fr/item/04143620/