@article {Guicking:1984:0736-2935:457, title = "Active systems in room acoustics - Solved and unsolved problems", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1984", volume = "1984", number = "3", publication date ="1984-12-03T00:00:00", pages = "457-462", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1984/00001984/00000003/art00093", keyword = "51.1, 38.2", author = "Guicking, D. and Rollwage, M.", abstract = "", }