"Common Painting" and Diligent Fiddling" : Technical Analysis for Insight into the Divergent Styles of Dürer's "Madonna and Child" / "Lot and his Daughters" - Delaney, John K.; Gifford, E. Melanie (The challenge of the object : 33rd Congress of the International Committee of the History of Art, Nuremberg, 15th - 20th July 2012 ; CIHA 2012, Nürnberg, 2013)