Some Designs Which Admit Strong Tactical Decompositions. - Henry Beker; Fred Piper (J. Comb. Theory A, 1977)

2-Designs Having an Intersection Number k - n. - Henry Beker (J. Comb. Theory A, 1980)

Key Management for Secure Electronic Funds Transfer in a Retail Environment. - Henry Beker; Michael Walker 001 (CRYPTO, 1984)

Keeping security in perspective. - Henry Beker (Comput. Law Secur. Rev., 1988)