@article{oai:tohoku.repo.nii.ac.jp:00026066, author = {Sugawara, Y. and Kushibiki, J. and Chubachi, N.}, journal = {IEEE 1986 Ultrasonics Symposium}, month = {}, note = {application/pdf, 学術論文 (Article), 399681 bytes}, pages = {783--788}, title = {Theoretical analysis on acoustic fields formed by focusing devices in acoustic microscopy}, volume = {1986}, year = {1986} }