@article{01046340, title = {On quadruple integral equations involving trigonometric kernels.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {20}, year = {1997}, pages = {311-322}, doi = {10.1155/S0161171297000422}, zbl = {0888.45003}, language = {en}, url = {http://dml.mathdoc.fr/item/01046340} }
Aggarwala, B.D. On quadruple integral equations involving trigonometric kernels.. International Journal of Mathematics and Mathematical Sciences, Tome 20 (1997) pp. 311-322. doi : 10.1155/S0161171297000422. http://gdmltest.u-ga.fr/item/01046340/