1. On Opposition in Spherical Buildings and Twin Buildings

   • P. Abramenko
   • H. Van Maldeghem

   Pages: 125 - 137

2. The Classification of Certain Four-Weight Spin Models

   • E. Bannai
   • M. Sawano

   Pages: 139 - 151

3. An Edge-Isoperimetric Problem for Powers of the Petersen Graph

   • S.L. Bezrukov
   • S.K. Das
   • R. Elsässer

   Pages: 153 - 169

4. Lagrangian Matroids and Cohomology

   • R.F. Booth
   • A.V. Borovik
   • D.A. Stone

   Pages: 171 - 182

5. The Theorem of the k-1 Happy Divorces

   • A.W.M. Dress

   Pages: 183 - 194

6. A Bijective Answer to a Question of Zvonkin

   • R. Ehrenborg

   Pages: 195 - 197

7. Flags and Shellings of Eulerian Cubical Posets

   • R. Ehrenborg
   • G. Hetyei

   Pages: 199 - 226

8. The Polychromate and a Chord Diagram Polynomial

   • I. Sarmiento

   Pages: 227 - 236

9. Orthogonal Matroids

   • Z.-X. Wan

   Pages: 237 - 246