1. Laguerre and Minkowski planes produced by dilatations

   • Rafael Artzy
   • Hansjoachim Groh

   OriginalPaper Pages: 1 - 20

2. Classification of surfaces with pointwise planar normal sections and its application to Fomenko's conjecture

   • Bang-yen Chen
   • Shi-jie Li

   OriginalPaper Pages: 21 - 34

3. Ein isotropes Analogon zum Satz von Holditch

   • Helmut Pottmann

   OriginalPaper Pages: 35 - 42

4. Embedding linear spaces with two line degrees in finite projective planes

   • Albrecht Beutelspacher

   OriginalPaper Pages: 43 - 61

5. Loops mit distributiven und geometrischen Unterloopverbänden

   • Huberta Lausch

   OriginalPaper Pages: 62 - 76

6. Reduced strictly convex plane figure is of constant width

   • Boris V. Dekster

   OriginalPaper Pages: 77 - 81

7. Athwart curves in R³

   • Francisco J. Craveiro de Carvalho
   • Alan West

   OriginalPaper Pages: 82 - 98