@article{1250523688, author = {Maruyama, Masaki}, title = {On automorphism groups of ruled surfaces}, journal = {J. Math. Kyoto Univ.}, volume = {11}, number = {3}, year = {1971}, pages = { 89-112}, language = {en}, url = {http://dml.mathdoc.fr/item/1250523688} }
Maruyama, Masaki. On automorphism groups of ruled surfaces. J. Math. Kyoto Univ., Tome 11 (1971) no. 3, pp. 89-112. http://gdmltest.u-ga.fr/item/1250523688/