1. Computable single-valued numerations

   • S. S. Goncharov

   OriginalPaper Pages: 325 - 356

2. Profinite groups

   • Yu. L. Ershov

   OriginalPaper Pages: 357 - 366

3. Finite groups with given centralizer of a central involution

   • V. I. Zenkov

   OriginalPaper Pages: 367 - 376

4. Categorical Horn classes. I

   • B. A. Palyutin

   OriginalPaper Pages: 377 - 400