Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Casas-Alvero, Eduardo and Xambó-Descamps, Sebastián",The enumerative theory of conics after Halphen,,Springer-Verlag,1986,Lecture notes in mathematics,,"3540164952,0387164952",,https://cir.nii.ac.jp/crid/1130282270876731136