1. Free, S.M. and Wilson, J.W. 1964. A mathematical contribution to structure-activity studies.J. Med. Chem. 1:395–399.
2. Fujita, T., Iwasa, J. and Hansch, C. 1964. A new substituent constant, π, derived from partition coefficients. J. Amer. Chem. Soc. 86: 5175–5180.
3. Hall, L.H. and Kier, L.B. 1986. Structure activity relationship studies on the toxicity of benzene derivatives: II. An analysis of benzene substituent effects on toxicity. Environ. Toxicol. Chem. 5: 333–337.
4. Hall, L.H., Kier, L.B. and Phipps, G. 1984. Structure-activity relationships on the toxicities of benzene derivatives: I. An additivity model. Environ. Toxicol. Chem. 3: 355–365.
5. Hermens, J., Leeuwangh, P. and Musch, A. 1984. Quantitative structure-activity relationships and mixture toxicity studies of chloro- and alkylanilines at an acute lethal toxicity level to the guppy (Poecilia reticulata). Ecotoxicol. Environ. Saf. 8: 388–394.