Robinson, William T., Gurumurthy Kalyanaram and Glen Urban. Review of Industrial Organization Vol. 9, No. 1 (1994): 1-23.
Little, John D.C., Leonard M. Lodish, John R. Hauser and Glen L. Urban. In Research Traditions in Marketing, 45-51. Norwell, MA: Kluwer Academic Publishers, 1994.
Urban, Glen L. In Handbooks in Operations Research and Management Science, Volume 5, 315-348. Amsterdam, The Netherlands: Elsevier Science Publishers, 1993.
Hauser, John R., Glen Urban, and Bruce Weinberg. Journal of Marketing Research Vol. 30, No. 4 (1993): 452-466. Obtain copy from author.
Urban, Glen and John R. Hauser. Englewood Cliffs, NJ: Prentice Hall, 1993.
Urban, Glen, John S. Hulland and Bruce D. Weinberg. Journal of Marketing Vol. 57, No. 2 (1993): 47-63.