Papers about Rigal language:

  1. Auguston M., Programming language RIGAL as a compiler writing tool, ACM SIGPLAN Notices, December 1990, vol.25, #12, pp.61-69 (PDF)
  2. Auguston M., RIGAL - a programming language for compiler writing, Lecture Notes in Computer Science, Springer Verlag, vol.502, 1991, pp.529-564.