@misc{indiciaec57d800a7d48,
  title = {Adding Concrete Syntax to a Prolog-Based Program Synthesis System},
  author = {Fischer, Bernd and Visser, Eelco},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20030107525},
  note = {Source identifier: 20030107525}
}