Research into the History of the Working Class Movement in Poland in the Years 1945-1987 - Kozik, Zenobiusz (. La @science historique polonaise dans l'historiographie mondiale. - Wrocław [u.a.] : Zakł. Narodowy im. Ossolińskich, 1990. - 488 S.. - ISBN 83-04-03288-0, 1990)