1. Necrobiotic xanthogranuloma;R.K.;J Am Acad Dermatol,1980
2. Juvenile xanthogranuloma of the orbit. AmJ7 Ophthalmol;Gaynes, P.M.; Cohen, G.S.,1967
3. La Piana FG. Orbital manifestations of Erdheim-Chester;Alper, M.G.; Zimmerman, L.E.,1983
4. Histopathology of necrobiotic xanthogranuloma;Finan, M.C.; Winkelmann, R.K.,1987