1. On mappings preserving orthogonality of non-singular vectors

   • Burkhard Alpers
   • Eberhard M. Schröder

   OriginalPaper Pages: 3 - 15

2. On the order structure in the line geometry of a projective space

   • A. Bichara
   • J. Misfeld
   • C. Zanella

   OriginalPaper Pages: 16 - 32

3. Special point sets inPG(n,q) and the structure of sets with the maximal number of nuclei

   • A. Blokhuis
   • F. Mazzocca

   OriginalPaper Pages: 33 - 41

4. On 2-transitive 3-nets

   • Arrigo Bonisoli

   OriginalPaper Pages: 42 - 57

5. Was Sie schon immer über affine Punkträume wissen wollten oder Keine Angst vor Translationen

   • Werner Heise
   • Kay Sörensen

   OriginalPaper Pages: 58 - 71

6. A characterization of Hermitian curves

   • J. W. P. Hirschfeld
   • L. Storme
   • J. F. Voloch

   OriginalPaper Pages: 72 - 78

7. Lokal endliche Andre-Systeme

   • Hubert Kiechle

   OriginalPaper Pages: 79 - 93

8. Geradenmodelle der Möbius- und Burau-Geometrien

   • Günter Kist
   • Bernhard Reinmiedl

   OriginalPaper Pages: 94 - 113

9. Necessary conditions for the existence of divisible designs

   • Michael Klemm

   OriginalPaper Pages: 114 - 123

10. A configurational characterization of incidence loops which are incidence groups

    • Mario Marchi

    OriginalPaper Pages: 124 - 132

11. Doppelebenen und Loops

    • Günter Pickert

    OriginalPaper Pages: 133 - 144

12. Automorphisms of (B)-geometries

    • Pasquale Quattrocchi
    • Gloria Rinaldi

    OriginalPaper Pages: 145 - 156

13. Schliessungssätze in Laguerre-Ebenen

    • Hans-Joachim Samaga

    OriginalPaper Pages: 157 - 161

14. On the structure of finite elation Laguerre planes

    • Günter F. Steinke

    OriginalPaper Pages: 162 - 179

15. Über die dritte quadratische Differentialform eines Normalensystems

    • N. K. Stephanidis

    OriginalPaper Pages: 180 - 192

16. Quasi-ordered Desarguesian affine spaces

    • Helga Tecklenburg

    OriginalPaper Pages: 193 - 202