1. Variational aspects of Poncelet's theorem

   • Georges Lion

   OriginalPaper Pages: 105 - 118

2. Steiner polygons in the Steiner problem

   • Jia Feng Weng

   OriginalPaper Pages: 119 - 127

3. Ordinary 3-polytopes

   • T. Bisztriczky

   OriginalPaper Pages: 129 - 142

4. Semiregular surfaces with a single triple-point

   • Peter R. Cromwell
   • W. L. Marar

   OriginalPaper Pages: 143 - 153

5. Sets associated with the farthest point problem

   • Duane Detemple
   • Jack Robertson

   OriginalPaper Pages: 155 - 163

6. McMullen's conditions and some lower bounds for general convex polytopes

   • Antoine Deza
   • Komei Fukuda

   OriginalPaper Pages: 165 - 173

7. A characterization of the classical unital

   • S. G. Barwick

   OriginalPaper Pages: 175 - 180

8. On projective planes admitting elations and homologies

   • Alexander Pott

   OriginalPaper Pages: 181 - 193

9. The spherical spectrum of a graded ring

   • Gilbert Stengle
   • Hasan Yousef

   OriginalPaper Pages: 195 - 208