1. Statistical inference in factor analysis;Anderson,1954
2. Generalised least squares estimators in the analysis of covariance structures;Browne;South African Statist. J.,1974
3. The Covariance Matrix of a General Second Degree Matrix Polynomial under Normality Assumptions;Browne,1984
4. Meervariante lineêre en kwadratiese vorme van normale vektore;Crowther,1972
5. Matrix-valued distributions;de Waal,1985