@article {Gruschka:1972:0736-2935:326, title = "On the role of the radiation directivity in noise reduction for STOL aircraft", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1972", volume = "1972", number = "1", publication date ="1972-10-04T00:00:00", pages = "326-331", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1972/00001972/00000001/art00058", keyword = "23.8, 13.1.3", author = "Gruschka, Heinz D.", abstract = "", }