1. Submanifolds of an even-dimensional sphere

   • Kentaro Yano
   • Masahiro Kon

   OriginalPaper Pages: 131 - 139

2. Minkowski addition and mixed volumes

   • H. Groemer

   OriginalPaper Pages: 141 - 163

3. Zur Kombinatorischen struktur (m, n)-konvexer Mengen

   • Jürgen Kaapke

   OriginalPaper Pages: 165 - 169

4. On a transformation of a plane convex curve

   • Moritz Armsen

   OriginalPaper Pages: 171 - 179

5. A three-point convexity property and the union of two convex sets

   • Karsten Juul

   OriginalPaper Pages: 181 - 192

6. Blocking sets

   • A. A. Bruen
   • J. A. Thas

   OriginalPaper Pages: 193 - 203

7. A characterization of some lie incidence structures

   • Bruce N. Cooperstein

   OriginalPaper Pages: 205 - 258