1. 1/2-Transitive Graphs of Order 3p

   • Brian Alspach
   • Ming-Yao Xu

   OriginalPaper Pages: 347 - 355

2. Duality of Graded Graphs

   • Sergey Fomin

   OriginalPaper Pages: 357 - 404

3. Projective Planes of Order q whose Collineation Groups have Order q ²

   • William M. Kantor

   OriginalPaper Pages: 405 - 425