1. Joreskog, K. and Wold, H. (Eds.) Systems Under Indirect Observation: Causality, Structure, Prediction, North-Holland, Amsterdam, 1982. PLS was developed in response to a request by the Swedish government for an objective method of handicapping state-run horse races (S. Wold, private communication).
2. Wold, S., Martens, H. and Wold, H., In Kagstrom, B. and Ruhe, A. (Eds.) Lecture Notes in Mathematics, Matrix Pencils, Vol. 973, Springer, Berlin, 1983, p. 286.
3. Wold, S., Ruhe, A., Wold, H. and Dunn III, W.J., SIAM J. Sci. Stat. Comput., 5 (1984) 735.
4. Cramer III, R.D., Patterson, D.E. and Bunce, J.D., J. Am. Chem. Soc., 110 (1988) 5959.
5. Lorber, A., Wangen, L.E. and Kowalski, B.R., J. Chemometrics, 1 (1987) 19.