@article{oai:tus.repo.nii.ac.jp:00000876,
 author = {長谷川, 和志 and Hasegawa, Kazuyuki},
 issue = {2},
 journal = {SUT Journal of Mathematics, SUT Journal of Mathematics},
 month = {},
 pages = {325--341},
 title = {Twistor holomorphic affine surfaces and projective invariants},
 volume = {50},
 year = {2014},
 yomi = {ハセガワ, カズユキ}
}