# Reference 1. https://medium.com/urbint-engineering/haskell-lens-operator-onboarding-a235481e8fac 1. https://fstarlang.github.io/general/2018/01/12/lens-indexed-lenses.html 1. [Jeremy Gibbons - Profunctor Optics Modular Data Accessors](https://www.youtube.com/watch?v=sfWzUMViP0M &&& http://www.cs.ox.ac.uk/people/jeremy.gibbons/publications/poptics.pdf) 1. http://hackage.haskell.org/package/profunctors-3.3.0.1/docs/Data-Profunctor.html 1. https://github.com/purescript-contrib/purescript-profunctor-lenses 1. https://hackage.haskell.org/package/lens-4.16/docs/Control-Lens-Indexed.html 1. http://oleg.fi/gists/posts/2017-04-18-glassery.html 1. http://oleg.fi/gists/posts/2017-12-23-functor-optics.html 1. [Edward Kmett - Monad Transformer Lenses](https://www.youtube.com/watch?v=Bxcz23GOJqc) 1. [Brian McKenna - Productionisation of Functional Optics](https://www.youtube.com/watch?v=H01dw-BMmlE) 1. [YOW! Lambda Jam 2017 Ken Scambler - Lenses for the Masses – Introducing Goggles](https://www.youtube.com/watch?v=oIhdOqaKSEg) 1. https://bartoszmilewski.com/2017/07/07/profunctor-optics-the-categorical-view/ 1. [Profunctor Optics: The Categorical Approach - Bartosz Milewski](https://www.youtube.com/watch?v=l1FCXUi6Vlw) 1. https://calmm-js.github.io/partial.lenses/ 1. http://evincarofautumn.blogspot.com/2016/01/thoughts-on-using-fractional-types-to.html 1. https://www.slideshare.net/davidoverton/comonad 1. http://codingismycraft.com/index.php/2017/10/04/adding-descriptors-to-your-python-arsenal/ 1. https://blog.jle.im/entry/lenses-products-prisms-sums.html 1. http://www.philipzucker.com/lens-as-a-divisibility-relation-goofin-off-with-the-algebra-of-types/