R. Kisiel, A. Lech, and K. Zawierucha, “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”, aspe, vol. 10, no. 3, pp. 61–72, Sep. 2011.