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@article{MV_1970_22_3_a0, author = {R. Daci\'c}, title = {The sine functional equation for groups}, journal = {Matemati\v{c}ki vesnik}, pages = {279 }, publisher = {mathdoc}, volume = {22}, number = {3}, year = {1970}, url = {http://geodesic.mathdoc.fr/item/MV_1970_22_3_a0/} }
R. Dacić. The sine functional equation for groups. Matematički vesnik, Tome 22 (1970) no. 3, p. 279 . http://geodesic.mathdoc.fr/item/MV_1970_22_3_a0/