@article{oai:nagoya.repo.nii.ac.jp:00031514,
 author = {Ochiai, Yoshiyuki and Yamashita, Tohru},
 issue = {2},
 journal = {Memoirs of the Faculty of Engineering, Nagoya University},
 month = {Feb},
 pages = {200--206},
 title = {Characterization of transmissional distortions in speech communication},
 volume = {6},
 year = {1955}
}