[FIG(short list)[ [4] [[S式]]
- [[POSE]]
- [[Lisp]]
- [[ML]]
- [[Scheme]]
- [[DSSSL]]
- [[Concord]]
]FIG]


[2] [CITE[S-expressions - Projects: S Mark: Overview]], [TIME[2021-11-02T04:09:50.000Z]], [TIME[2022-08-23T12:58:04.009Z]] <https://www.s-mark.s-expressions.org/overview>

[3] [CITE[S-expressions - Projects: Twinjo: Specification]], [TIME[2021-11-02T04:09:50.000Z]], [TIME[2022-08-23T12:58:19.856Z]] <https://www.twinjo.s-expressions.org/specification>