@article{oai:nipr.repo.nii.ac.jp:00004137,
 author = {Kunitake, Manabu and Tanaka, Takashi and Igarashi, Kiyoshi and Yamamoto, Shin-ichi and Maeno, Hideo and Ogawa, Tadahiko},
 journal = {Proceedings of the NIPR Symposium on Upper Atmosphere Physics},
 month = {Feb},
 note = {P(論文)},
 pages = {42--46},
 title = {New-type echoes observed with the 50 MHz auroral Doppler radar at Syowa Station (extended abstract)},
 volume = {6},
 year = {1993}
}