U. Olsson

On The Robustness Of Factor Analysis Against Crude Classification Of The Observations.

U. Olsson, 1979, Multivariate behavioral research.

A Longitudinal Factor Model For Studying Change In Ability Structure.

L R Bergman, L. Bergman, U. Olsson, 1977, Multivariate behavioral research.

Theoretic Fit and Empirical Fit: The Performance of Maximum Likelihood versus Generalized Least Squares Estimation in Structural Equation Models.

R. Howell, S. V. Troye, U. Olsson, 1999, Multivariate behavioral research.