KACPERSKA, E. The influence of international trade with Germany, the agro-food trade in particular, on the Polish GDP size. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego, [S. l.], v. 13, n. 4, p. 56–65, 2013. DOI: 10.22630/PRS.2013.13.4.61. Disponível em: https://prs.sggw.edu.pl/article/view/5079. Acesso em: 9 maj. 2024.