@book {RicH.K-CSIG-2001,
	title = {Cinderella {\textendash} {S}oftware interattivo di geometria},
	year = {2001},
	note = {Italian translation.},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {Mailand},
	keywords = {software},
	author = {Richter-Gebert, J{\"u}rgen and H.~Kortenkamp, Ulrich}
}
