1. Existence of α-resolvable nested incomplete block designs;Banerjee;Utilitas Math.,1990
2. Cyclic Difference Sets;Baumert,1971
3. On a combinatorial problem of antennas in radioastronomy;Bermond,1976
4. Design Theory;Beth,1985
5. On the construction of balanced incomplete block designs;Bose;Ann. Eugenics,1939