Endomorphism monoids of free acts and 0-wreath products of monoids III. U. Knauer; A. Mikhalev — 1980 Semigroup forum
Endomorphism monoids of free acts and 0-wreath products of monoids, I. Annihilator properties. U. Knauer; A. Mikhalev — 1980 Semigroup forum
Endomorphism monoids of free acts and 0-wreath products of monoids, II. Regularity. U. Knauer; A. Mikhalev — 1980 Semigroup forum
Wreath products of ordered semigroups, II. Inverse ordered wreath products. U. Knauer; A. Mikhalev — 1985 Semigroup forum
An example of two von Neumann regular rings with nonisomorphic Monta equivalent multiplicative semigroups. A.V. Mikhalev; U. Knauer; K.I. Beidar — 1994 Semigroup forum