@article{oai:nagano-nct.repo.nii.ac.jp:00000935,
 author = {齋藤, 泉 and 大西, 浩次 and 安藤, 享平 and 大川, 拓也 and 小野, 智子 and 篠原, 秀雄 and 高橋, 淳 and 松尾, 厚 and 奥野, 勉},
 journal = {長野工業高等専門学校紀要, Memoirs of Nagano National College of Technology},
 month = {Jun},
 note = {application/pdf, We measured the transmittance of filters and the substitutes for direct observation of the sun, from 2009 to 2012. In this paper, we report the results of the measurements in detail. This paper gives fundamental data for observing solar eclipses safely.},
 title = {太陽観察グラスの透過率測定Ⅱ},
 volume = {48},
 year = {2014}
}