1. Nonnegative definite and positive definite solutions to the matrix equation AXA∗ = B;Baksalary;Linear and Multilinear Algebra,1984
2. Nonnegative definite solutions to some matrix equations occuring in distribution theory of quadratic forms;Baksalary;Sankhyā, Ser. A,1980
3. A property of the dispersion matrix of the best linear unbiased estimator in the general Gauss-Markov model;Baksalary;Sankhyā Ser. A,1990
4. Hermitian and nonnegative definite solutions of some matrix equations connected with distribution of quadratic forms;Bhimasankaram;Sankhyā Ser. A,1980
5. Representations of the covariance matrix for robustness in the Gauss-Markov model;Chikuse;Comm. Statist. Theory Methods,1981