@article{oai:uec.repo.nii.ac.jp:00007011,
 author = {児島, 俊弘 and 山中, 惣之助 and Kojima, Toshihiro and Yamanaka, Sonosuke},
 issue = {15},
 journal = {電気通信大学学報. A, 理工学編, Reports of the University of Electro-Communications. Part A, Science and technology},
 month = {Dec},
 pages = {25--29},
 title = {超音波増幅について},
 year = {1963},
 yomi = {コジマ, トシヒロ and ヤマナカ, ソウノスケ}
}