@article{SF_1989__38_2_134941,
     author = {A.V. Kelarev},
     title = {Hereditary radicals and 0-bands of semigroups.},
     journal = {Semigroup forum},
     pages = {57--76},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1989},
     zbl = {0661.20043},
     url = {http://geodesic.mathdoc.fr/item/SF_1989__38_2_134941/}
}