@article {Dobrzynski:1987:0736-2935:227, title = "Noise control for ultralight aircraft", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1987", volume = "1987", number = "6", publication date ="1987-09-15T00:00:00", pages = "227-230", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1987/00001987/00000006/art00051", keyword = "30, 13.1", author = "Dobrzynski, W. and Dahlen, H. and Heller, H.", abstract = "", }