Millan JA and N Aldaz (1998). “Agricultural Productivity of the Spanish Regions: A Non-Parametric Malmquist Analysis.” Appl Econ 30(7): 875-884.
Millan JA and N Aldaz (1998). “Agricultural Productivity of the Spanish Regions: A Non-Parametric Malmquist Analysis.” Appl Econ 30(7): 875-884.