Kisiel, R., Lech, A. and Zawierucha, K. 2011. SYSTEM OF AGRICULTURAL STRUCTURAL PENSIONS IN POLAND AFTER THE YEAR 2000 BASED ON THE EXAMPLE OF THE SELECTED COUNTIES IN WARMIŃSKO-MAZURSKIE AND MAZOWIECKIE VOIVODSHIPS. Acta Scientiarum Polonorum. Oeconomia. 10, 3 (Sep. 2011), 61–72.