Ueber die verschiedenen Formen der Bedingungsgleichung, welche ausdrückt, dass sechs Punkte auf einem Kegelschnitte liegen.
In this paper we give a characterisation of the Galois spreads, which are defined in [5] for the construction of the indicator set.
A quasiregular comfiguration is a finite partial plane, which not contains proper closed configuration. In this paper the authors investigate a representations of quasiregular configurations in real projective space and in comples projective plane.