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Urban, Glen. Industrial Management Review (1969): 45-61.

"A Mathematical Modeling Approach to Product Line Decisions."

Urban, Glen. Journal of Marketing Research Vol. 6, No. 1 (1969): 40147.

"A New Products Analysis and Decision Model."

Urban, Glen. Management Science Vol. 14, No. 8 (1968): 490-517.

"SPRINTER: A Tool for New Products Decision Makers."

Urban, Glen. Industrial Management Review Vol. 8, No. 2 (1967): 43-54.