UL/1: a non-procedural language for retrieving information from data bases. - T. William Olle (IFIP Congress (1), 1968)

The Large Data Base, its Organization and User Interface - Transcription of a Panel at the 1968 ACM Conference, Las Vegas, Nevada. - T. William Olle (Data Base, 1969)

A Taxonomy of Data Definition Languages. - T. William Olle (FDT Bull. ACM SIGFIDET SIGMOD, 1969)

CODASYL 10th Anniversary Meeting 1969 May 27-28, Session Outline. - T. William Olle (FDT Bull. ACM SIGFIDET SIGMOD, 1969)

Storage and Processing Trade-Offs (pre-discussion summary). - T. William Olle (SIGFIDET Workshop, 1970)

Data Definition Spectrum and Procedurality Spectrum in data Base Management Systems. - T. William Olle (IFIP Working Conference Data Base Management, 1974)

Current and Future Trends in Data Base Management Systems. - T. William Olle (IFIP Congress, 1974)

An Analysis of the Flaws in the Schema DDL and Proposed Improvements. - T. William Olle (IFIP TC-2 Special Working Conference on Data Base Description, 1975)

The European DBMS Scene. - T. William Olle (Data Base, 1975)

A Practitioner's View of Relational Data Base Theory. - T. William Olle (FDT Bull. ACM SIGFIDET SIGMOD, 1975)

Letter. - T. William Olle (SIGMOD Rec., 1976)

Multistage Data Definition in a Multicomponent DBMS Architecture. - T. William Olle (JCDKB, 1978)

The Conceptual Schema Controversy. - T. William Olle (SIGMOD Conference, 1978)

A Tutorial on Data Modelling Using Entity Types, Attributes and Relationships. - T. William Olle (NATO ASI DBM, 1981)

A Continuation. - T. William Olle (CRIS, 1983)

IFIP comparative review of information systems design methodologies: problem definition. - T. William Olle (Trends in Information Systems, 1986)

Business Analysis and System Design Specifications for Inventory Control and Purchasing System. - T. William Olle (Computerized Assistance During the Information Systems Life Cycle, 1988)

System Design Specifications for a Conference Organization System. - T. William Olle (Computerized Assistance During the Information Systems Life Cycle, 1988)

ISO Database Standards - A Summary and Review of Status. - T. William Olle (ER, 1990)

Information systems methodologies - a framework for understanding (2. ed.). - T. William Olle; Jacques Hagelstein; Ian G. MacDonald; Colette Rolland; Henk G. Sol (Addison-Wesley, 1991)

Data Modelling and Conceptual Modelling: a comparative analysis of functionality and roles. - T. William Olle (Australas. J. Inf. Syst., 1993)

Information System Methods - History, Status and Forecast. - T. William Olle (IFIP Congress (3), 1994)

Expanding methodologies to handle distributed systems. - T. William Olle (Business Process Re-Engineering, 1994)

Impact of standardization work on the future of information technology. - T. William Olle (IFIP World Conference on IT Tools, 1996)

Innovation and Standardization in the Information Systems Field: Report on Workshop 2. - T. William Olle (ISCO, 1999)

Ferranti Mercury at the Norwegian Defence Research Establishment. - T. William Olle (History of Nordic Computing, 2003)

Eight significant events in the 50 year history of computing. - T. William Olle (History of Computing in Education, 2004)

Nineteen Sixties History of Data Base Management. - T. William Olle (HCE2, 2006)

IFIP TC8 Information Systems. - T. William Olle (IFIP TC8 WCC ISS, 2006)

Reflections on 50 Years of Computing: Impact of Professionalism on Teaching, Practice and Research. - T. William Olle (Advances in Information Systems Research, Education and Practice, 2008)