<strong>Sprague, C.J., Lothspeich, S., Chuck, F., and Goodrum, R. (2004).</strong> \u201cGeogrid Reinforcement of Road Base Aggregate \u2014 Measuring the Confinement Benefit.\u201d <em>Proceedings of Geo-Trans 2004<\/em>, July 27-31, Los Angeles, CA, 996-1005.