message: Add some papers to GUI inspiration
diff: @@ -32,3 +32,21 @@ We might also want to eventually investigate implementing the programming enviro
  - [Visual Programming Codex](https://github.com/ivanreese/visual-programming-codex)
  - [The Whole Code Catalog](https://futureofcoding.org/catalog/)
  +
  +### Papers
  +
  +- "Tangible Functional Programming"<br>
  + Conal M. Elliott,
  + [CiteSeer](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.422.6896)
  +- "An Extensible Proof Text Editor"<br>
  + Thomas Hallgren, Aarne Ranta,
  + [CiteSeer](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.138.2186)
  +- "Interactive visual functional programming"<br>
  + Keith Hanna,
  + [ACM](https://dl.acm.org/doi/10.1145/583852.581493)
  +- "A Document-Centered Environment for Haskell"<br>
  + Keith Hanna,
  + [ACM](https://dl.acm.org/doi/10.1007/11964681_12)
  +- "Accessible AST-Based Programming for Visually-Impaired Programmers"<br>
  + Emmanuel Schanzer, Sina Bahram, Shriram Krishnamurthi,
  + [PDF](https://cs.brown.edu/~sk/Publications/Papers/Published/sbk-accessible-ast-blocks/paper.pdf)
  