@article{01750382, title = {Boundary control problem with an infinite number of variables.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {57-62}, doi = {10.1155/S0161171201007128}, zbl = {0999.49003}, language = {en}, url = {http://dml.mathdoc.fr/item/01750382} }
El-Saify, Hussain A. Boundary control problem with an infinite number of variables.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 57-62. doi : 10.1155/S0161171201007128. http://gdmltest.u-ga.fr/item/01750382/