@article {Sperry:1975:0736-2935:699, title = "Analysis of noise levels for existing and future airplanes in view of modifications to Federal Aviation Regulations Part 36", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1975", volume = "1975", number = "2", publication date ="1975-08-27T00:00:00", pages = "699-706", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1975/00001975/00000002/art00139", keyword = "82, 13.1", author = "Sperry, William C.", abstract = "", }