1. Professor W. Knödel, 60 years

   • Rul Gunzenhäuser
   • Hans J. Stetter

   Contributed Papers Pages: 283 - 284

2. Graph isomorphism and theorems of Birkhoff type

   • G. Tinhofer

   Contributed Papers Pages: 285 - 300

3. An efficient labeling technique for solving sparse assignment problems

   • U. Derigs
   • A. Metz

   Contributed Papers Pages: 301 - 311

4. An O(n) bin-packing algorithm for uniformly distributed data

   • J. Csirik
   • G. Galambos

   Contributed Papers Pages: 313 - 319

5. Iterative improvement of componentwise errorbounds for invariant subspaces belonging to a double or nearly double eigenvalue

   • G. Alefeld
   • H. Spreuer

   Contributed Papers Pages: 321 - 334

6. Convexity preserving interpolation with exponential splines

   • W. Heß
   • J. W. Schmidt

   Contributed Papers Pages: 335 - 342

7. An extrapolation method for the efficient composition of maps with applications to non-linear oscillations

   • U. Kirchgraber
   • G. Pospiech

   Contributed Papers Pages: 343 - 354

8. A compact variable metric algorithm for nonlinear minimax approximation

   • L. Lukšan

   Contributed Papers Pages: 355 - 373

9. An improved algorithm for Boolean matrix multiplication

   • N. Santoro
   • J. Urrutia

   Contributed Papers Pages: 375 - 382