@article{oai:tsukuba.repo.nii.ac.jp:00046114,
 author = {平岡, 昭利 and HIRAOKA, Akitoshi},
 issue = {1},
 journal = {地理空間, Geographical space},
 month = {},
 pages = {1--17},
 title = {東沙島への日本人の進出と西澤島事件},
 volume = {4},
 year = {2011}
}