@article {Yamaguchi:1991:0736-2935:977, title = "Development of a level recorder using digital technique", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1991", volume = "1991", number = "3", publication date ="1991-12-02T00:00:00", pages = "977-988", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1991/00001991/00000003/art00029", keyword = "74.4, 72.1", author = "Yamaguchi, Kiminori and Anzai, Masazou and Minagawa, Moriyasu and Ohashi, Masanao and Ono, Takahiko", abstract = "", }