Volume 42, Number 1, May 1986
: Doubly transitive (n + 2)-arcs in projective planes of even order n.
Vladimir D. Tonchev
: Quasi-symmetric 2-(31, 7, 7) designs and a revision of Hamada's conjecture.
Joseph A. Thas
: The classification of all (x, y)-transitive generalized quadrangles.
Volume 42, Number 2, July 1986
Jørn B. Olsson
: Remarks on symbols, hooks and degrees of unipotent characters.
Donald L. Kreher
: An incidence algebra for t-designs with automorphisms.
: Extraneous multipliers of cyclic difference sets.
David W. Barnette
: Preassigning the shape of projections of convex polytopes.
: A new proof of the Erdos-Szekeres convex k-gon result.