//-->
On the price and structural efficiency in Farrell's model
Sengupta, Jati K., (1992)
Determinazione delle misure di efficienza di Farrell in via duale
Salsecci, Gianluca, (1987)
Entrepreneurship, total factor productivity, and economic efficiency : Landes, Solow, and Farrell thirty years later
Allen, Robert C., (1991)
Productive efficiency in U.S. manufacturing : a linear programming approach
Burley, Henry T., (1980)
Investigating and classifying clients' satisfaction with business incubator services
Abduh, Muhamad, (2007)