An Allegory in Grey and a Dutch Clue. A Painting Attributed to Franciszek Smuglewicz from the Collection of the National Museum in Warsaw. (2026). Rocznik Muzeum Narodowego W Warszawie. Nowa Seria Journal of the National Museum in Warsaw. New Series, 14(50), 196-216. https://doi.org/10.63538/rmnwns.014.10