Moshe Morgenstern. Ramanujan Graphs and Diagrams Function Field Approach. In Joel Friedman, editor, Expanding Graphs, Proceedings of a DIMACS Workshop, Princeton, New Jersey, USA, May 11-14, 1992. Volume 10 of DIMACS Series in Discrete Mathematics and Theoretical Computer Science, pages 111-116, DIMACS/AMS, 1992.
Abstract is missing.