1. Sum-Free Sets and Related Sets

   • Yuri Bilu

   Original Paper Pages: 449 - 459

2. Principally Unimodular Skew-Symmetric Matrices

   • André Bouchet
   • W. H. Cunningham
   • J. F. Geelen

   Original Paper Pages: 461 - 486

3. On the Existence of Disjoint Cycles in a Graph

   • Hikoe Enomoto

   Original Paper Pages: 487 - 492

4. How to decrease the diameter of triangle-free graphs

   • Paul Erdős
   • András Gyárfás
   • Miklós Ruszinkó

   Original Paper Pages: 493 - 501

5. Algorithms for Measuring Perturbability in Matroid Optimization

   • Greg N. Frederickson
   • Roberto Solis-Oba

   Original Paper Pages: 503 - 518

6. On the Structure of Zerofree Sequences

   • Weidong Gao
   • Alfred Geroldinger

   Original Paper Pages: 519 - 527

7. On Subsets with Small Product in Torsion-Free Groups

   • Y. O. Hamidoune
   • A. S. Lladó
   • O. Serra

   Original Paper Pages: 529 - 540

8. The Comparability Graph of a Modular Lattice

   • Takayuki Hibi

   Original Paper Pages: 541 - 548

9. A Combinatorial Algorithm for the Minimum (2, r)-Metric Problem and Some Generalizations

   • Alexander V. Karzanov

   Original Paper Pages: 549 - 568

10. 3n − 5 Edges Do Force a Subdivision of \(\)

    • W. Mader

    Original Paper Pages: 569 - 595