@article{MV_1976_28_2_a39,
     author = {D. Nikoli\'c-Despotovi\'c},
     title = {The representation and the approximation of one class of exponential functions},
     journal = {Matemati\v{c}ki vesnik},
     pages = {437 },
     year = {1976},
     volume = {28},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/MV_1976_28_2_a39/}
}