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Cassini, G. D. «A Discovery of two New Planets about Saturn, made in the Royal Parisian Observatory by Signor Cassini, Fellow of both the Royal Societys, of England and France; English't out of French». Philosophical Transactions, 8, 1673, 1673, pàg. 5178–5185. Bibcode: 1673RSPT....8.5178C. DOI: 10.1098/rstl.1673.0003.
Afirmat a: A Short History of Astronomy. Autor: Arthur Berry. Editorial: John Murray. Llengua del terme, de l'obra o del nom: anglès britànic. Data de publicació: 1898.