@article{oai:nagoya.repo.nii.ac.jp:00031447,
 author = {Ochiai, Yoshiyuki and Fukumura, Teruo and Nakatani, Kunio},
 issue = {1},
 journal = {Memoirs of the Faculty of Engineering, Nagoya University},
 month = {Sep},
 pages = {160--166},
 title = {Timbre study on nasalics : Part II. Preliminary experimental representation of timbre-Patterns of sustained nasals section A-General observation},
 volume = {9},
 year = {1957}
}