Spratt, Christopher E. «The Hungaria group of minor planets». Royal Astronomical Society of Canada, Journal (ISSN 0035-872X), 84, 2, abril 1990, pàg. 123–131. Bibcode: 1990JRASC..84..123S.
Yeomans, Donald K. «3225 Hoag». JPL Small-Body Database Browser, 07-12-2007. [Consulta: 7 desembre 2007].—The listed values were rounded at the magnitude of uncertainty (1-sigma).