@article{MABA_1997_11_3-4_a21,
     author = {O. Agratini},
     title = {On a {Class} of {Linear} {Approximating} {Operators}},
     journal = {Mathematica balkanica},
     pages = {407},
     publisher = {mathdoc},
     volume = {11},
     number = {3-4},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/MABA_1997_11_3-4_a21/}
}