The Challenge of Keypunching for MT Roger A Heller author 1997-oct 29 – nov 1 text Proceedings of Machine Translation Summit VI: Plenaries Virginia Teller editor Beth Sundheim editor San Diego, California conference publication heller-1997-challenge https://aclanthology.org/1997.mtsummit-plenaries.9/ 1997-oct 29 – nov 1 37 38