Thorsten Brants Ashok C. Popat Peng Xu Franz Josef Och Jeffrey Dean Large Language Models in Machine Translation. 858-867 2007 EMNLP-CoNLL http://www.aclweb.org/anthology/D07-1090 conf/emnlp/2007 db/conf/emnlp/emnlp2007.html#BrantsPXOD07