Maciejewska, Katarzyna. „Strengthening State Property As a systemic Premise for Retirement Pension Benefits in Agriculture – Historical Experiences of the People’s Republic of Poland”. Ubezpieczenia W Rolnictwie – Materiały I Studia, nr 2/74, grudzień 2020, s. 75-94, https://ojs.academicon.pl/ur/article/view/10110.