@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00001320,
 author = {坪井, 良恵},
 month = {Mar},
 title = {熱帯・亜熱帯域の河川水中の溶存態・懸濁態生物由来ケイ素の動態},
 year = {2007}
}