@article{MV_1978_30_1_a20,
     author = {S. Jankovi\'c},
     title = {Neergodi\v{c}ki izvori {Markova}},
     journal = {Matemati\v{c}ki vesnik},
     pages = {155 },
     year = {1978},
     volume = {30},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1978_30_1_a20/}
}