Reference:
 - Author: Helmut Schmid
   Title: A Programming Language for Finite State Transducers
   Journal: >
     Conference: Finite-State Methods and Natural Language Processing,
     5th International Workshop, FSMNLP 2005
   Year: 2005
   DOI: 10.1007/11780885_38
   URL: https://link.springer.com/chapter/10.1007/11780885_38
   eprint: https://www.cis.uni-muenchen.de/~schmid/papers/SFST-PL.pdf
