@article{YoshikawaIsamu:1977-08-00,
author="Yoshikawa, Isamu and 小林, 清 and 馬場, 恒夫 and 武村, 重和",
title="Cognitive characteristics of children for electro-magnetic materials(3)",
journal="日本科学教育学会年会講演論文集",
ISSN="",
publisher="Japan Society for Science Education (JSSE)",
year="1977",
month="aug",
volume="",
number="1",
pages="69-70",
URL="http://ci.nii.ac.jp/naid/110002919416/en/",
DOI="",
}