@book{402487, title = {Introduction \`a la g\'eom\'etrie projective diff\'erentielle des surfaces}, series = {GDML\_Books}, publisher = {Gauthier-Villars \& Cie}, address = {Paris}, year = {1931}, zbl = {0005.31102}, language = {fr}, url = {http://dml.mathdoc.fr/item/402487} }
Fubini, Guido; Čech, Eduard. Introduction à la géométrie projective différentielle des surfaces. GDML_Books (1931), http://gdmltest.u-ga.fr/item/402487/