An Allegory in Grey and a Dutch Clue. A Painting Attributed to Franciszek Smuglewicz from the Collection of the National Museum in Warsaw. Rocznik Muzeum Narodowego w Warszawie. Nowa Seria / Journal of the National Museum in Warsaw. New Series, [S. l.], n. 14(50), p. 196–216, 2026. DOI: 10.63538/rmnwns.014.10. Disponível em: https://rocznik.mnw.art.pl/ojs/index.php/rm/article/view/204.. Acesso em: 28 feb. 2026.