Embedding partial geometries in Steiner designs, Andries Brouwer, Willem Haemers, Vladimir Tonchev
Department of Mathematical Sciences Publications

Spreads in strongly regular graphs, Willem Haemers, Vladimir Tonchev
Department of Mathematical Sciences Publications

A design and a code invariant under the simple group Co3, Willem Haemers, Christopher Parker, Vera Pless, Vladimir Tonchev
Department of Mathematical Sciences Publications