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The Controversy on the comets of 1618: Galileo Galilei, Horatio Grassi, Mario Guiducci, Johann Kepler. Translated by Stillman Drake and C.D. O'Malley.
Comets -- 1618.
Galilei, Galileo, 1564-1642. Assayer.
Drake, Stillman.
O'Malley, Charles Donald.
Catalog