@article {Ryu:2015:0736-2935:4227, title = "Effect of perforated ceiling structure on floor impact sound", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2015", volume = "250", number = "3", publication date ="2015-08-10T00:00:00", pages = "4227-4234", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2015/00000250/00000003/art00094", keyword = "51.5, 51.3", author = "Ryu, Jong-Kwan and Kim, Kyoung-Ho", abstract = "", }