Kurze Produktentwicklungszeiten durch Nutzung unsicherer Informationen. - Walter Eversheim; Axel Roggatz; Hans-Jürgen Zimmermann; Thomas Derichs (Informationstechnik Tech. Inform., 1995)

Ability of Fuzzy Constraint Networks to Reduce the Dynamic of Changes in Product Development. - Walter Eversheim; Axel Roggatz; Robert E. Young (Fuzzy Days, 1997)

Information management for concurrent engineering. - Walter Eversheim; Axel Roggatz; Hans-Jürgen Zimmermann; Thomas Derichs (Eur. J. Oper. Res., 1997)

A methodology for the reduction of imprecision in the engineering process. - Ronald E. Giachetti; Robert E. Young; Axel Roggatz; Walter Eversheim; Giovanni Perrone (Eur. J. Oper. Res., 1997)