@article {Nelson:1990:0736-2935:427, title = "On quantifying and using the "diffraction effect" for cost and performance optimization of sound absorption treatments", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1990", volume = "1990", number = "1", publication date ="1990-10-15T00:00:00", pages = "427-432", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1990/00001990/00000001/art00072", keyword = "35, 23.4", author = "Nelson, David A.", abstract = "", }