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New models for measuring the R&D performance and identifyiug the productivity of public research institutes. Coccia,Mario. R & D Management . 2004
[2]
Mechanization and Sustainability in Arable Farming in England. F. R. Leival,J. Morris. J. Agricultural Engineering Research . 2001
[3]
Evaluation of the cost actions implemented with Hungarian participation(1991-1998). Zoltan Andrasi,,Andrea Orisek. . 1999