@article{MABA_1993_7_3-4_a11,
     author = {Gh. Toader},
     title = {Alexander's {Operator} for {Sequences}},
     journal = {Mathematica balkanica},
     pages = {297},
     publisher = {mathdoc},
     volume = {7},
     number = {3-4},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/MABA_1993_7_3-4_a11/}
}