@article{oai:nipr.repo.nii.ac.jp:00004251, author = {Kuramata,Shuichi and Nanjo,Hirotada and Shibata, Toru and Yamagami,Takamasa}, journal = {Proceedings of the NIPR Symposium on Upper Atmosphere Physics}, month = {Jan}, note = {P(論文)}, pages = {163--165}, title = {Proposal on the observation of super-high energy cosmic-rays by means of Polar Patrol Balloon (PPB) (extended abstract)}, volume = {11}, year = {1998} }