1. Quasivarieties of algebraic systems

   • A. I. Budkin
   • V. A. Gorbunov

   OriginalPaper Pages: 73 - 84

2. Remarks on the representability of groups by matrices

   • Yu. I. Merzlyakov

   OriginalPaper Pages: 85 - 85

3. The description of categorical quasivarieties

   • E. A. Palyutin

   OriginalPaper Pages: 86 - 111

4. The halt problem and theory of hierarchies

   • L. N. Pobedin

   OriginalPaper Pages: 112 - 123

5. Zero divisors and nil elements in Mal'tsev algebras

   • V. T. Filippov

   OriginalPaper Pages: 124 - 131

6. Generalized identities with automorphisms

   • V. K. Kharchenko

   OriginalPaper Pages: 132 - 148

7. Sessions of the seminar "algebra and logic"

   OriginalPaper Pages: 149 - 149