The Perseus Project. http://www.perseus.tufts.edu/hopper/artifactBrowser?object=Vase&field=Collection&value=University+Museum%2C+University+of+Pennsylvania.
Schaus, Gerald P., and Jack L. Benson. Corpus Vasorum Antiquorum: The University Museum. University Museum 2; USA 29. Philadelphia: The University Museum, 1995. See: p. 36; p. 71, fig. 4, 3; pl. 19, 4