First-Class Patterns for Icon. - Kenneth Walker (Comput. Lang., 1989)

The Maintenance of Intermediate Values in Goal-Directed Evaluation. - Kenneth Walker; Ralph E. Griswold (LOPLAS, 1992)

An Optimizing Compiler for the Icon Programming Language. - Kenneth Walker; Ralph E. Griswold (Softw. Pract. Exp., 1992)

An Operational Semantics for Icon: Implementation of a Procedural Goal-Directed Language. - Janalee O'Bagy; Kenneth Walker; Ralph E. Griswold (Comput. Lang., 1993)