@article{oai:teapot.lib.ocha.ac.jp:00034717,
 author = {Ohhira, Mari},
 issue = {2},
 journal = {お茶の水女子大學自然科學報告},
 month = {Dec},
 note = {application/pdf, 紀要論文},
 pages = {75--97},
 title = {An Observation on the Hexagonal Lattice and Its Application to Neron-severi Groups},
 volume = {44},
 year = {1993}
}