Hereditary and semihereditary rings without nilpotent elements R. Gonchigdorzh OriginalPaper Pages: 192 - 203
Recursive-combinatorial properties of subsets of the natural numbers A. N. Degtev OriginalPaper Pages: 204 - 210
Automorphisms of unipotent subgroups of chevalley groups V. M. Levchuk OriginalPaper Pages: 211 - 224
Intersection of noncharacterizable varieties of lattices Zh. A. Omarov OriginalPaper Pages: 224 - 228
Undecidable properties of extensions of the logic of provability A. V. Chagrov OriginalPaper Pages: 231 - 243