[Goldberg04] David Goldberg, Robert Bruce Findler, and Matthew Flatt, “Super and Inner—Together at Last!,” Object-Oriented Programming, Languages, Systems, and Applications, 2004.
[Flatt02] Matthew Flatt, “Composable and Compilable Macros: You Want it When?,” International Conference on Functional Programming, 2002.
[Flatt06] Matthew Flatt, Robert Bruce Findler, and Matthias Felleisen, “Scheme with Classes, Mixins, and Traits (invited tutorial),” Asian Symposium on Programming Languages and Systems, 2006.
[Mitchell02] Richard Mitchell and Jim McKim, Design by Contract, by Example. 2002.
[Sitaram05] Dorai Sitaram, “pregexp: Portable Regular Expressions for Scheme and Common Lisp.” 2002.