# Programming Language Theory * [Can Programming Be Liberated from the von Neumann Style? A Functional Style and Its Algebra of Programs](http://www.thocp.net/biographies/papers/backus_turingaward_lecture.pdf) * [Programming and Reasoning with Algebraic Effects and Dependent Types](http://eb.host.cs.st-andrews.ac.uk/drafts/effects.pdf) * [Backtracking Iterators](https://www.lri.fr/~filliatr/publis/enum2.pdf) * [Breadth-First Numbering: Lessons from a Small Exercise in Algorithm Design](http://www.cs.tufts.edu/~nr/cs257/archive/chris-okasaki/breadth-first.pdf)