@article{oai:shizuoka.repo.nii.ac.jp:00002846,
 author = {Watanabe, Kenzo and Ashiki, Mitsuaki and Takao, Iwao},
 issue = {3},
 journal = {IEEE Transactions on Instrumentation and Measurement},
 month = {Sep},
 note = {application/pdf},
 pages = {220--224},
 title = {A Broad-Band Impedance Indicator Employing a Phase-Shift Keying Modulator},
 volume = {26},
 year = {1977}
}