Existence of doubly near resolvable (v, 4, 3) BIBDs. - R. Julian R. Abel; Nigel H. N. Chan (Australas. J Comb., 2010)

Existence of GBRDs with block size 4 and BRDs with block size 5. - R. Julian R. Abel; Nigel H. N. Chan; Diana Combe; William D. Palmer (Des. Codes Cryptogr., 2011)