Results from an International Intercalibration Study on PCDDs and PCDFs in a Fly Ash Extract Publication Attachment: 94-297.pdf Authors: van Bavel, B, Takeda, N, Inoue, T, Ishihara, S, Ito, H, Kohno, S, Miyata, H, Morita, M, Sandell, E, Takasuga, T, Rappe, C Year: 1994