Volume 92, Numbers 1-3, November 1991
: A note on a stochastic model for the incubation of transfusion- associated AIDS.
: Codes and designs - existence and uniqueness.
Rolf S. Rees
: The spectrum of restricted resolvable designs with r = 2.
R. J. Simpson
: Disjoint covering systems of rational Beatty sequences.
: The geometry of the binomial array modulo p2 and p3.
H. C. Williams
: Some formulas concerning the fundamental unit of a real quadratic field.