6TRIANTAPHYLLOU E, KOVALERCHUK B, MANN L, et al. Determining the most important criteria in maintenance decision making[J]. Journal of Quality in Maintenance Engineering, 1997,3(1) :16-28.
7SAATY T L. A ratio scale metric and the compatibility of ratio scales: the possibility of arrow's impossibility theorem[J].Applied Mathematics Letters,1994,7(6) :51-57.
8CHEN C B, KLEIN C M. A simple approach to ranking a group of aggregated fuzzy utilities[J].IEEE Transactions on Systems, Man, and Cybernetics Part B:Cyberneties,1997, 27(1) :26-35.
