@article{oai:nipr.repo.nii.ac.jp:00004199, author = {EJIRI, Masaki and SATO, Natsuo and OKANO, Shoichi and MAKITA, Kazuo and FUJII, Ryoichi and SHIBAZAKI, Kazuo}, journal = {Proceedings of the NIPR Symposium on Upper Atmosphere Physics}, month = {Jan}, note = {P(論文)}, title = {Foreword}, volume = {10}, year = {1997} }