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:
Pure Appl. Chem., 1979, Vol. 51, No. 11, pp. 2197-2210
http://dx.doi.org/10.1351/pac197951112197