1. Extended Skolem sequences;Baker;J. Combin. Des.,1995
2. Disjoint Skolem sequences and related disjoint structures;Baker;J. Combin. Des.,1993
3. J.-C. Bermond, A.E. Brouwer, A. Germa, Systemes de triplets et differences associees, in: Colloq. CRNS, Problemes Combinatoires et Theorie des Graphes, Orsay, 1976, pp. 35–38.
4. Cyclic balanced ternary designs with block size three and index two;Billington;Ars Combin.,1987
5. Steiner systems;Colbourn,2006