@article{oai:tsukuba.repo.nii.ac.jp:00017142,
 author = {Akahori, Katsumi},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {213--225},
 title = {Classification of projective surfaces and projective normality},
 volume = {22},
 year = {1998}
}