@Article{ authors = " Catheline Perier-d'Ieteren", title = "Contribution a l'etude des volets peints du retable sculpte de Pruszcz / Catheline Perier-d'Ieteren.", journal = "Bulletin du Musee National de Varsovie", issue = "1977 / Tom 18 / Numer 2", pages = "55 - 67" }

@Article{ authors = " Anna Kozak", title = "Unknown Portrait by Jan de Herdt / Anna Kozak.", journal = "Bulletin du Musee National de Varsovie", issue = "1977 / Tom 18 / Numer 2", pages = "45 - 54" }