A recursive interpreter for the Icon programming language. - Janalee O'Bagy; Ralph E. Griswold (PLDI, 1987)

Seque: A Programming Language for Manipulating Sequences. - Ralph E. Griswold; Janalee O'Bagy (Comput. Lang., 1988)

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