5Farrell, M. J.The Measurement of Productive Efficiency . Journal of the Royal Statistical Society, Series A, 1957, 125(3):253-281.
6Fare, Rolf, Shawna Grosskopf and Sung-Ko Li. Linear Programming Models for Firm and Industry Performance . Scandinavian Journal of Economics, 1992, 94(4):599-608.
7Fare, Roll and Daniel Primont.Measuring the Efficiency of multiunit banking: An Activity Analysis Approach . Journal of Banking and Finance, 1993, 17(2-3):539-544.
8Fφrsund, Finn R. and Lennart Hjalmarsson. Generalised Farrell Measure of Efficiency: An Application to Milk Processing in Swedish Dairy Plants .Economic Journal, 1979, 89(354): 294-315.
9Li, Sung Ko and Ying Chu Ng.Measuring the Productive Efficiency of a Group of Firms.International Advances in Economic Research ,1995,(4):377-390.
10Li, Sung Ko, and Yuk Shing Cheng. Modelling Heterogeneity in the Measurement of Structural Efficiency. Myths and Reality of Productivity Miracles and Failures in Transitional Economies,Kyiv (Kiev), Ukraine,2005:1-19.
