@article{oai:nagoya.repo.nii.ac.jp:00019636,
 author = {鎌田, 哲夫 and KAMADA, Tetsuo},
 issue = {1},
 journal = {空電研究所報告},
 month = {Oct},
 note = {According to his experiences in last summer, the author found that the directive lightning counter is more useful than the non-directive one for the prediction of thunderstorms. After extensive investigation he determined to adopt, as relay, a cathode ray tube which has an electron collector divided into 8 sections and covered with fluorescent material, the latter being used as a visual monitoring device.},
 pages = {44--46},
 title = {方位分割型雷放電計数器の研究(第2報) : 回路方式と記録管について},
 volume = {5},
 year = {1954}
}