1. In memoriam Hans Freudenthal

   • Karl Strambach
   • Ferdinand D. Veldkamp

   Announcement Pages: 119 - 119

2. Ein projektiver Beweis für den Peripheriewinkelsatz und den Satz von den Tangentenstrecken in der isotropen Ebene

   • S. Mick

   OriginalPaper Pages: 121 - 123

3. Dynamical invariants of rigid motions on the hyperbolic plane

   • Péter T. Nagy

   OriginalPaper Pages: 125 - 139

4. A knot without tritangent planes

   • A. Montesinos Amilibia
   • J. J. Nuño Ballesteros

   OriginalPaper Pages: 141 - 153

5. Coordinate finite-type submanifolds

   • Thomas Hasanis
   • Theodore Vlachos

   OriginalPaper Pages: 155 - 165

6. Enumeration in balanced 2-manifolds

   • Katherine E. Magurn

   OriginalPaper Pages: 167 - 181

7. Covering and guarding polygons using L _k -sets

   • Thomas Shermer

   OriginalPaper Pages: 183 - 203

8. Quasi-symmetric 3-designs with triangle-free graph

   • Rajendra M. Pawale

   OriginalPaper Pages: 205 - 210

9. Classification of harmonic mappings of constant energy density into spheres

   • Joon-Sik Park
   • Hajime Urakawa

   OriginalPaper Pages: 211 - 226

10. Some remarks on the Riemannian metrics on warped products

    • Jin Suk Pak
    • Tae Ho Kang

    OriginalPaper Pages: 227 - 232

11. Projective spaces on partially ordered sets and Desargues' postulate

    • Stefan E. Schmidt

    OriginalPaper Pages: 233 - 243