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Pure Appl. Chem., 1996, Vol. 68, No. 4, pp. 789-798
doi:10.1351/pac199668040789
L. Fisera, R. Huisgen, I. Kalwinsch, E. Langhals, X. Li, G. Mloston, K. Polborn, J. Rapp, W. Sicking and R. Sustmann