Pure Appl. Chem., 1973, Vol. 34, No. 1, pp. 13-28
http://dx.doi.org/10.1351/pac197334010013
The application of chelate compounds in analytical chemistry
First page:

Pure Appl. Chem., 1973, Vol. 34, No. 1, pp. 13-28
http://dx.doi.org/10.1351/pac197334010013