1. Guillaume Boisseau. 2018. Simplified profunctor optics and their equivalent existential optics encoding. (2018). Guillaume Boisseau. 2018. Simplified profunctor optics and their equivalent existential optics encoding. (2018).
2. https://gist.github.com/Nadrieril/ 88982e37a16791ed53123cfc5573296a https://gist.github.com/Nadrieril/ 88982e37a16791ed53123cfc5573296a
3. Nicolas Frisby. 2017. Haskell invariant functors library. (2017). https://hackage. haskell.org/package/invariant Nicolas Frisby. 2017. Haskell invariant functors library. (2017). https://hackage. haskell.org/package/invariant
4. Russell O’Connor. 2014. Mainline Profunctor Hierarchy for Optics. (2014). http: //r6research.livejournal.com/27476.html Russell O’Connor. 2014. Mainline Profunctor Hierarchy for Optics. (2014). http: //r6research.livejournal.com/27476.html