# Van Wijngaarden grammar

> one of the two main notation techniques for context-free grammars in computer science

**Wikidata**: [Q1644674](https://www.wikidata.org/wiki/Q1644674)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Van_Wijngaarden_grammar)  
**Source**: https://4ort.xyz/entity/van-wijngaarden-grammar


## References

1. Freebase Data Dumps. 2013