@misc{oai:tsukuba.repo.nii.ac.jp:00011331, author = {Ogasawara, Ryo and 小笠原, 亮}, month = {}, note = {2001, 【要旨】}, title = {Organic cosmo- and geochemical studies on dipeptides and diketopiperazines in carbonaceous chondrites and recent sediments}, year = {2002} }