1. Ruled threefolds homeomorphic to ℙ² × ℙ¹ and their divisors

   • Mirella Manaresi

   OriginalPaper Pages: 1 - 17

2. On webs of maximum rank

   • John B. Little

   OriginalPaper Pages: 19 - 35

3. A pinching theorem for four manifolds

   • Walter Seaman

   OriginalPaper Pages: 37 - 40

4. Irreducible subgroups of SL(n, K) generated by root subgroups

   • Shangzhi Li

   OriginalPaper Pages: 41 - 44

5. Zur Zerlegung von Kreisüberdeckungen \(\mathop \mathfrak{U}\limits^{\cdot\cdot} \)(r, 1) der Ebene in zwei Kreispackungen \(\mathfrak{P}\)(r, 1) und \(\mathfrak{Q}\)(r)

   • Michael Schmitz

   OriginalPaper Pages: 45 - 62

6. PSL(2,q) as a collineation group of projective planes of small order

   • G. Eric Moorhouse

   OriginalPaper Pages: 63 - 88

7. Nine convex sets determine a pentagon with convex sets as vertices

   • T. Bisztriczky
   • G. Fejes Tóth

   OriginalPaper Pages: 89 - 104

8. Invariants, orbits and symmetric spaces

   • M. Ferrarotti
   • F. Tricerri

   OriginalPaper Pages: 105 - 122

9. Errata

   Erratum Pages: 123 - 124