6Saaty T L.A scaling method for priorities in hierarchical structures [J].Journal of Mathematical Psychology, 1997, 15:234-281.
7Herman M. An intrinsic consistency threshold for reciprocal matrices[J].European Journal of Operational Research 1996, 96:387-391.
8Saaty T L. The Analytic Hierarchy Process[M]. McGraw-Hill,New York, 1980.
9Saaty T L. A ratio scale metric and compatibility of ratio scales: on the possibility of Arrow's-impossibility theorem[J]. Applied Mathematical Letters,1994,8(6):51-57.
