@article{oai:repository.dl.itc.u-tokyo.ac.jp:00023910, author = {尾上, 守夫}, issue = {6}, journal = {生産研究}, month = {Jun}, note = {application/pdf}, pages = {287--288}, title = {研究速報 : 超音波遅延回路における往復多重反射}, volume = {8}, year = {1956} }