@article{oai:tsukuba.repo.nii.ac.jp:00018417,
 author = {Okuyama, Makiko and 齊藤, 康典 and SAITO, Yasunori},
 issue = {3},
 journal = {Zoological science},
 month = {Apr},
 pages = {397--404},
 title = {Studies on the Structure of the Brooding Organs of Two Botryllid Ascidians, Botryllus delicatus and Botryllus sexiens},
 volume = {18},
 year = {2001},
 yomi = {サイトウ, ヤスノリ}
}