Erratum to: A Statistical Approach to Machine Translation Peter F Brown author Stephen A Della Pietra author Fredrick Jelinek author Robert L Mercer author John Cocke author Vincent J Della Pietra author John D Lafferty author Paul S Roossin author 1991 text journal article Computational Linguistics continuing periodical academic journal brown-etal-1991-erratum https://aclanthology.org/J91-3005/ 1991 17 3 79 85