@article{2644, author = {Tavathia, B.S.}, title = {Certain theorems in operational calculus involving integrals containing hyperbolic functions}, journal = {Portugaliae mathematica}, volume = {30}, year = {1971}, pages = {21-28}, zbl = {0228.44003}, mrnumber = {0304990}, language = {en}, url = {http://dml.mathdoc.fr/item/2644} }
Tavathia, B.S. Certain theorems in operational calculus involving integrals containing hyperbolic functions. Portugaliae mathematica, Tome 30 (1971) pp. 21-28. http://gdmltest.u-ga.fr/item/2644/