@article{oai:u-ryukyu.repo.nii.ac.jp:02001379,
 author = {Taira, Katsuaki and 平良, 勝明},
 issue = {58},
 journal = {琉球大学教育学部紀要},
 month = {Mar},
 note = {紀要論文},
 pages = {219--255},
 title = {The Mystery of Robert Goddard},
 year = {2001}
}