"Analysis of Theoretical Versus Actual HDD Pulling Loads", presented at the ASCE "Pipelines 2003" Conference, Baltimore, Maryland, July 14-16, 2003.

"Coating Requirements for Pipelines Installed by Horizontal Directional Drilling", presented at the ASCE "Pipelines 2002" Conference, Cleveland, Ohio, August 4-7, 2002.

"Design and Project Management Considerations Involved with Horizontal Directional Drilling", presented at the "New Advances in Trenchless Techology" Conference, St. Joseph, Missouri, February 5-8, 1995.

"Site Investigation Requirements for Large Diameter HDD Projects", presented at the "New Advances in Trenchless Techology" Conference, St. Joseph, Missouri, February 5-8, 1995.

Installation of Pipelines by Horizontal Directional Drilling, An Engineering Design Guide, prepared under the sponsorship of the Pipeline Research Committee at the American Gas Association, April 15, 1995.

Drilling Fluids in Pipeline Installation by Horizontal Directional Drilling, A Practical Applications Manual, prepared under the sponsorship of the Pipeline Research Committee at the American Gas Association, October 31, 1994.

"Analysis of Subsurface Pressures Involved with Directionally Controlled Horizontal Drilling", presented at the ASCE "Pipeline Crossings" Conference, Denver, Colorado, March 25-27, 1991.

"Considerations in the Design and Installation of Horizontally Drilled Pipeline River Crossings", presented at the ASCE "Pipeline Infrastructure" Conference, Boston, Massachusetts, June 6-7, 1988.

"Directionally-controlled drilling for pipelines", presented at the Institute of Public Health Engineers "NO-DIG 85" Conference, London, England, April 16-18, 1985.

"Pipe Line Landfall Construction by Horizontal Drilling", presented at the ASCE "Arctic '85" Conference, San Francisco, California, March 25-27, 1985.