Reye, Theodor. 1838- *4*E .220.38 Ueber quadratische Kugelcomplexe und confocale Cycliden. (In Cremona, Luigi, and Beltrami, Eugenio, editors. In memoriam Dominici Chelini. Collectanea mathematica, Pp, 241-257. Mediolani, 1881.)
-Modern higher geometry.