Measuring Customer Satisfaction Using a Collective Preference Disaggregation Model. - Yannis Siskos; Evangelos Grigoroudis; Constantin Zopounidis; Olivier Saurais (J. Glob. Optim., 1998)

TELOS: a customer satisfaction evaluation software. - Evangelos Grigoroudis; Yannis Siskos; Olivier Saurais (Comput. Oper. Res., 2000)