1. Structure of slope-critical configurations

   • Robert E. Jamison

   OriginalPaper Pages: 249 - 277

2. On semi-translation blocks

   • N. T. Butler

   OriginalPaper Pages: 279 - 290

3. Fibrazioni planari e sottovarietà algebriche della varietà di Grassmann

   • Guglielmo Lunardon

   OriginalPaper Pages: 291 - 313

4. Covering of the plane by discs

   • Gábor Fejes Tóth
   • August Florian

   OriginalPaper Pages: 315 - 333

5. Minimale erzeugung von Positivbereichen

   • Ludwig Bröcker

   OriginalPaper Pages: 335 - 350

6. The automorphism group of locally compact connected topological Benz planes

   • Günter F. Steinke

   OriginalPaper Pages: 351 - 357

7. To the theorem of A. P. Sprague on spatial webs

   • Václav Havel
   • Josef Klouda

   OriginalPaper Pages: 359 - 372