Chmielewski, W. 2018. Jan Konopnicki (1905–1980): A Researcher of the Education System and Organizer of the Education of Polish Teachers in Exile. Studia Paedagogica Ignatiana. 21, 2 (Aug. 2018), 37–62. DOI:https://doi.org/10.12775/SPI.2018.2.002.