1. Foreward

   • A. A. Ivanov

   EditorialNotes Pages: I - II

2. Two-sheeted branched coverings of a three-dimensional sphere

   • O. Ya. Viro

   OriginalPaper Pages: 531 - 553

3. Theorem on decomposition for simply connected six-dimensional manifolds

   • A. V. Zhubr

   OriginalPaper Pages: 554 - 561

4. Extension structures

   • A. A. Ivanov

   OriginalPaper Pages: 561 - 608

5. Enrichments

   • A. A. Ivanov

   OriginalPaper Pages: 609 - 614

6. The calculation of signatures and defects of elementary links

   • V. M. Nezhinskii

   OriginalPaper Pages: 615 - 624

7. Almost smooth two-dimensional submanifolds of four-dimensional manifolds and some link invariants

   • S. A. Popov

   OriginalPaper Pages: 624 - 630