F?re R, S Grosskopf and S Kraft (1987). “Technical Efficiency and Size: the Case of Illinois Grain Farms.” European Review of Agricultural Economic 14(4): 367-381.

F?re R and S Grosskopf (1994). “Measuring Productivity – a Comment.” Int J Oper Prod Man 1: 83-88.

F?re R, S Grosskopf and WF Lee (1995). “Productivity in Taiwanese Manufacturing-Industries.” Appl Econ 2: 259-265.

F?re R and S Grosskopf (1995). “Nonparametric-Tests of Regularity, Farrell Efficiency, and Goodness- of-Fit.” J Econometrics 6: 415-425.

F?re R, S Grosskopf, B Lindgren and P Roos (1992). “Productivity Changes in Swedish Pharmacies 1980-1989: A Non-Parametric Malmquist Approach.” JPA 3: 85-101.

F?re R and S Grosskopf (1996). “Productivity and Intermediate Products: A Frontier Approach.” Economics Letters 50(1): 65-70.

F?re R, S Grosskopf, B Lindgren and P Roos (1995). “Productivity Developments in Swedish Hospitals: A Malmquist Output Index Approach.” in Charnes A, WW Cooper, AY Lewin and LM Seiford (eds.) Data Envelopment Analysts: Theory, Methodology, and Applications, Kluwer.

F?re R and S Grosskopf (1996). “Profitability and Productivity Changes: An Application to Swedish Pharmacies.” Ann Oper Res 66: 219-230.

F?re R and S Grosskopf (1998). “Congestion: A Note.” Socio-Econ Plan Sci 32(1): 21-23.

F?re R and S Grosskopf (1999). “Primal and Dual DEA Measures of Capacity Utilization.? in Proceedings of Portland International Conference on Management of Engineering and Technology, Portland Int. 1: 447