@article{MABA_1996_10_1_a6,
     author = {M. Cirich and St. Bogdanovich},
     title = {Direct {Sums} of {Nil-Rings} and of {Rings} with {Clifford's} {Multiplicative} {Semigroups}},
     journal = {Mathematica balkanica},
     pages = {65},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/MABA_1996_10_1_a6/}
}