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@article{PIM_1964_N_S_04_18_a2, author = {Fikret Vajzovi\'c}, title = {On {The} {Functional} {Equation:} {T1(t+s)} {T2(t-s)} = {T3(t)} {T4(s)}}, journal = {Publications de l'Institut Math\'ematique}, pages = {21 }, publisher = {mathdoc}, volume = {_N_S_04}, number = {18}, year = {1964}, url = {http://geodesic.mathdoc.fr/item/PIM_1964_N_S_04_18_a2/} }
Fikret Vajzović. On The Functional Equation: T1(t+s) T2(t-s) = T3(t) T4(s). Publications de l'Institut Mathématique, _N_S_04 (1964) no. 18, p. 21 . http://geodesic.mathdoc.fr/item/PIM_1964_N_S_04_18_a2/