6Fare, R, & Grnsskopf, S. "Malmquist Productivity Indexes and Fisher Ideal Indexes". The Economic Journal 1992:102, 158- 160.
7Coelli, T.J.,“A Guide to DEAP Version 2.1: A Data Envel opment Analysis (computer) Program”. CEAP Working Paper 96/8, Department of Econometrics, University of New England, Armidale, Australia. 1996
8Ball V E,Lovell C A K,Luu H,et al. Incorporating Environmental Impacts in the Measurement of Agricultural Productivity Growth [J]. Journal of Agricultural and Re- source Economics, 2004, (03).
9Lansink A O, Reinhard S. Investigating Technical Efficiency and Potential Technological Change in Dutch Pig Farming [J]. Agricultural Systems, 2004, (03).
10Rezitis A N. Evaluating the State of Competition of the Greek Banking Industry [J]. Journal of International Financial Markets, Institutions and Money, 2010, (01).
