Constructing Steiner triple systems partially embedded in a projective plane

The usefulness of block designs in many natural and social sciences has been long astablished. In recent years, a considerable effort has been performed toward the construction of block designs. It would be of interest to construct designs using the geometric structure of a finite projective plane. In this paper by a well-known construction of Hanani connected with the idea of a Group Divisible Design we give some triplications of Steiner triple systems obtained from some simple GDD embedded in a finite projective plane.