@article{PIM_1973_N_S_16_30_a11,
     author = {Jovan D. Ke\v{c}ki\'c},
     title = {On {The} {Convergence} {Of} {Certain} {Sequences} {IV}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {91 },
     publisher = {mathdoc},
     volume = {_N_S_16},
     number = {30},
     year = {1973},
     url = {http://geodesic.mathdoc.fr/item/PIM_1973_N_S_16_30_a11/}
}