@article{01417982, title = {A boundary value problem for the wave equation.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {22}, year = {1999}, pages = {835-845}, doi = {10.1155/S0161171299228359}, zbl = {0948.35075}, language = {en}, url = {http://dml.mathdoc.fr/item/01417982} }
Iraniparast, Nezam. A boundary value problem for the wave equation.. International Journal of Mathematics and Mathematical Sciences, Tome 22 (1999) pp. 835-845. doi : 10.1155/S0161171299228359. http://gdmltest.u-ga.fr/item/01417982/