The Effect of Text Difficulty on Machine Translation Performance – A Pilot Study with ILR-Rated Texts in Spanish, Farsi, Arabic, Russian and Korean. - Ray Clifford; Neil Granoien; Douglas A. Jones; Wade Shen; Clifford J. Weinstein (LREC, 2004)

Measuring human readability of machine generated text: three case studies in speech recognition and machine translation. - Douglas A. Jones; Edward Gibson; Wade Shen; Neil Granoien; Martha Herzog; Douglas A. Reynolds; Clifford J. Weinstein (ICASSP (5), 2005)