@article{MABA_2012_26_1-2_a7,
     author = {I. Dimovski and V. Hristov},
     title = {Commutants of the {Square} of {Differentiation} on the {Half-Line}},
     journal = {Mathematica balkanica},
     pages = {79},
     publisher = {mathdoc},
     volume = {26},
     number = {1-2},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/MABA_2012_26_1-2_a7/}
}