Vizsgálatok algebrai struktúrák radikálelméletében (I) = Investigations in radical theory of algebraic structures. I.

The paper consists of the first two chapters and of the references of the author's D.Sc. thesis. The thesis was compiled from some 50 papers of the author, each of which has appeared and been reviewed in Mathematical Reviews. Four more chapters of the thesis will appear (\Investigations in radical theory of algebraic structures" (Hungarian)