1. Allen, R.B.: Toward an interactive directory for Norfolk, Nebraska: 1899–1900. In: IFLA Newspaper and Genealogy Section Meeting, Singapore (2013). arXiv:1308.5395
2. Allen, R.B.: Repositories with direct representation. In: Networked Knowledge Organization Systems (NKOS), Seoul Korea, December 2015, arXiv:1512.09070
3. Allen, R.B.: Direct representation of history with rich semantics (in preparation)
4. Lecture Notes in Computer Science;RB Allen,2007
5. Arp, R., Smith, B.: Function, role, and disposition in basic formal ontology. In: Bio-Ontologies Meeting, July 2008