Markdown (Informal)
[Fertility Models for Statistical Natural Language Understanding](https://aclanthology.org/P97-1022) (Della Pietra et al., ACL-EACL 1997)
ACL
- Stephen Della Pietra, Mark Epstein, Salim Roukos, and Todd Ward. 1997. Fertility Models for Statistical Natural Language Understanding. In 35th Annual Meeting of the Association for Computational Linguistics and 8th Conference of the European Chapter of the Association for Computational Linguistics, pages 168–173, Madrid, Spain. Association for Computational Linguistics.