@article{MV_1977_29_1_a4,
     author = {I. Marinkovi\'c},
     title = {The unsolvability of the emptiness problem of the two deterministic finite transducer mappings},
     journal = {Matemati\v{c}ki vesnik},
     pages = {49 },
     year = {1977},
     volume = {29},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1977_29_1_a4/}
}