Eine Min-Max Beziehung für das Exakte Matroid Problem Matthias Leclerc OriginalPaper Pages: 103 - 105
On the representing number of intersecting families M. AignerP. ErdösD. Grieser OriginalPaper Pages: 114 - 118
Subplanes of the Hughes plane of order 25 Luigia PuccioMarialuisa J. de Resmini OriginalPaper Pages: 151 - 165
Some remarks on the construction of cyclic Steiner Quadruple Systems Helmut Siemon OriginalPaper Pages: 166 - 178