Volume 59, Number 1, September 1993
A. J. W. Duijvestijn
: Simple Perfect Squared Squares and 2 × 1 Squared Rectangles of Orders 21 to 24.
Manoj K. Chari
: Steiner Complexes, Matroid Ports, and Shellability.
: A Tutte Polynomial for Partially Ordered Sets.
K. B. Chilakamarri
: A Characterization in Zn of Finite Unit-Distance Graphs in Rn.
Volume 59, Number 2, November 1993
: Integer Plane Multiflows with a Fixed Number of Demands.
: Local Strongly Arc-Connectivity in Regular Bipartite Digraphs.