@article{oai:tsukuba.repo.nii.ac.jp:00003907,
 journal = {年次研究報告, Annual report of Institute of Physics, the University of Tsukuba},
 month = {},
 pages = {64--69},
 title = {<研究活動>IV. 宇宙観測グループ},
 volume = {2004},
 year = {2004}
}