SZAJNER, Piotr. Impact of the COVID-19 pandemic on the situation of the agricultural markets in Poland. Ubezpieczenia w Rolnictwie – Materiały i Studia, [S. l.], n. 1/73, p. 95–115, 2020. Disponível em: https://ojs.academicon.pl/ur/article/view/10132. Acesso em: 6 wrz. 2025.