@article {Janczur:1979:0736-2935:397, title = "Influence of the shape and kind of acoustical treatment of ceiling for distribution of sound energy in a shallow room", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1979", volume = "1979", number = "2", publication date ="1979-09-11T00:00:00", pages = "397-402", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1979/00001979/00000002/art00075", keyword = "38.5, 51.2", author = "Janczur, R. and Czarnecki, S.", abstract = "", }