1. Converting a curve to right-angled increments

   • Per-Erik Danielsson

   OriginalPaper Pages: 213 - 221

2. List of all prime divisorsq=2Kp+1 of 2 ^p −1,K<10,p<15000

   • Edgar Karst

   OriginalPaper Pages: 222 - 228

3. Some approaches to the theory of information systems

   • B. Langefors

   OriginalPaper Pages: 229 - 254

4. In which order are different conditions to be examined?

   • Hans Riesel

   OriginalPaper Pages: 255 - 256

5. Analysis of elastic structures on digital computers

   • T. Vahl Olsen

   OriginalPaper Pages: 257 - 272

6. New books and journals

   Announcement Pages: 273 - 274

7. Notes

   Announcement Pages: 275 - 275