Identifying Trends in Accessible Content Processing. - David Crombie; Roger Lenoir; Neil McKenzie; Francisco Martínez Calvo (ELPUB, 2006)

Document Processing for Accessibility: Standards and Initiatives. - George T. Ioannidis; David Crombie; Francisco Martínez Calvo; Konstantina N. Geramani (ICCHP, 2006)