Pure Appl. Chem., 1979, Vol. 51, No. 11, pp. 2197-2210
http://dx.doi.org/10.1351/pac197951112197
The extension of the donor-acceptor concept
First page:
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Pure Appl. Chem., 1979, Vol. 51, No. 11, pp. 2197-2210
http://dx.doi.org/10.1351/pac197951112197