Mapping and displaying structural transformations between XML and PDF. - Matthew R. B. Hardy; David F. Brailsford (ACM Symposium on Document Engineering, 2002)

Creating reusable well-structured PDF as a sequence of component object graphic (COG) elements. - Steven R. Bagley; David F. Brailsford; Matthew R. B. Hardy (ACM Symposium on Document Engineering, 2003)

Combining structure and appearance in digital documents using XML and PDF. - Matthew R. B. Hardy (2003)

Creating structured PDF files using XML templates. - Matthew R. B. Hardy; David F. Brailsford; Peter L. Thomas (ACM Symposium on Document Engineering, 2004)

The Mars project: PDF in XML. - Matthew R. B. Hardy (ACM Symposium on Document Engineering, 2007)

Making accessible PDF documents. - Heather Devine; Andres Gonzalez; Matthew R. B. Hardy (ACM Symposium on Document Engineering, 2011)

DOCENG 2014: PDF tutorial. - Steven R. Bagley; Matthew R. B. Hardy (ACM Symposium on Document Engineering, 2014)