@article{PIM_1977_N_S_21_35_a11,
     author = {Du\v{s}an Gligorijevi\'c},
     title = {On {Two} {Classes} {Of} {Weighted} {Shifts}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {69 },
     publisher = {mathdoc},
     volume = {_N_S_21},
     number = {35},
     year = {1977},
     url = {http://geodesic.mathdoc.fr/item/PIM_1977_N_S_21_35_a11/}
}