1. Al-Onaizan, Y., Curin, J., Jahr, M., Knight, K., Lafferty, J., Melamed, I.D., Och, F.J., Purdy, D., Smith, N.A., Yarowsky, D.: Statistical machine translation: Final report. In: Proceedings of the Summer Workshop on Language Engineering. John Hopkins University Center for Language and Speech Processing (1999)
2. Alshawi, H., Douglas, S.: Learning Dependency Transduction Models from Unannotated Examples. Philosophical Transactions, Series A: Mathematical, Physical and Engineering Sciences (2000)
3. Alshawi, H., Bangalore, S., Douglas, S.: Learning Dependency Translation Models as Collections of Finite State Head Transducers. Computational Linguistics. Vol. 26 (2000)
4. Brown, P.F., Cocke, J., Della-Pietra, S., Della-Pietra, V.J., Jelinek, F., Lafferty, J.D., Mercer, R.L., Roossin, P.S.: A Statistical Approach to Machine Translation. Computational Linguistics. Vol. 16(2) (1990) 79–85
5. Brown, P.F., Della-Pietra, S.A., Della-Pietra, V.J., Mercer, R.L.: The Mathematics of Machine Translation: Parameter Estimation. Computational Linguistics. (1993)