@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/