1. An extension of Takahashi's theorem

   • Oscar J. Garay

   OriginalPaper Pages: 105 - 112

2. A Dido problem for domains in ℝ² with a given inradius

   • A. Montesinos Amilibia
   • S. Segura Gomis

   OriginalPaper Pages: 113 - 124

3. Paradoxical subsets of hyperbolic and spherical discs

   • Glen Aldridge Sherman

   OriginalPaper Pages: 125 - 138

4. Determining ellipsoids by intersections with flats

   • G. T. Sallee

   OriginalPaper Pages: 139 - 144

5. Bedingungen für die Zweispiegeligkeit der Automorphismengruppen von Cayleyalgebren

   • Alf Neumann

   OriginalPaper Pages: 145 - 159

6. On combinatorial and projective geometry

   • Andreas W. M. Dress
   • Walter Wenzel

   OriginalPaper Pages: 161 - 197

7. A new characterization of convex plates of constant width

   • Endre Makai Jr
   • Horst Martini

   OriginalPaper Pages: 199 - 209