Going Grey? Comparing the OCR Accuracy Levels of Bitonal and Greyscale Images. - Tracy Powell; Gordon W. Paynter (D Lib Mag., 2009)

The new Papers Past: an international collaboration between New Zealand, India, Germany, and the United States. - Daniel Lanz; Frederick Zarndt; Stefan J. Boddie; Tracy Powell; Vishal Salgotra (OCLC Syst. Serv., 2009)