Dörrie, H. "Malfatti's Problem." §30 in 100 Great Problems of Elementary Mathematics: Their History and Solutions. New York: Dover, pp. 147–151, 1965. ISBN 0-486-61348-8
Goldberg, M. "On the Original Malfatti Problem." Math. Mag.40, 241-247, 1967.
Ogilvy, C. S. Excursions in Geometry. New York: Dover, 1990. ISBN 0-486-26530-7