![Clustering of aryl carbon-13 nuclear magnetic resonance substituent chemical shifts. A multivariate data analysis using principal components]()
Clustering of aryl carbon-13 nuclear magnetic resonance substituent chemical shifts. A multivariate data analysis using principal componentsJohnels, Dan; Edlund, Ulf; Grahn, Hans; Hellberg, Sven; Sj�str�m, Michael; Wold, Svante; Clementi, Sergio; Dunn, William J. · Journal of the Chemical Society, Perkin Transactions 2 · 1983