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Senanayake, Chris H. Fredenburgh, Laura E. Reamer, Robert A. Larsen, Robert D. Verhoeven, Thomas R. Reider, Paul J. Journal of the American Chemical Society, 1994 , vol. 116, # 17 p. 7947 - 7948
参考文献:
Taracido, Ivan Cornella Harrington, Edmund Martin Hersperger, Rene Lattmann, Rene Miltz, Wolfgang Weigand, Klaus Patent: US9/9194 A1, 9 Location in patent: Page/Page column 8