Paper to PDA. - Thomas M. Breuel; William C. Janssen; Kris Popat; Henry S. Baird (ICPR (1), 2002)

Reflowable Document Images. - Thomas M. Breuel; William C. Janssen; Kris Popat; Henry S. Baird (Web Document Analysis, 2003)

UpLib: a universal personal digital library system. - William C. Janssen; Kris Popat (ACM Symposium on Document Engineering, 2003)

Document Icons and Page Thumbnails: Issues in Construction of Document Thumbnails for Page-Image Digital Libraries. - William C. Janssen (ECDL, 2004)

A Fluid Interface for Personal Digital Libraries. - Lance Good; Ashok C. Popat; William C. Janssen; Eric A. Bier (ECDL, 2005)

ReadUp: A Widget for Reading. - William C. Janssen (ECDL, 2005)

A fluid treemap interface for personal digital libraries. - Lance Good; Ashok C. Popat; William C. Janssen; Eric A. Bier (JCDL, 2005)

The UpLib personal digital library system. - William C. Janssen (JCDL, 2005)