1. Further results on (v,{5,w∗},1)-PBDs;Abel;Discrete Math.,2009
2. Existence of (v,{5,w∗},1)-PBDs;Bennett;Discrete Math.,2004
3. Handbook of combinatorial designs,2007
4. More frames with block size four;Colbourn;J. Combin. Math. Combin. Comput.,1997
5. Uniform restricted resolvable designs with r=3;Danziger;Ars Combin.,1997