[1]
Błażejczyk-Majka, L. and Kala, R. 2004. THE INFLUENCE OF TECHNICAL PROGRESS ON THE MARGINAL PRODUCTIVITY OF FACTORS AND THEIR SUBSTITUTION IN FRENCH AGRICULTURE IN 1980–1999. SECTORAL APPROACH. Acta Scientiarum Polonorum. Oeconomia. 3, 2 (Dec. 2004), 5-15.