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 occurring in distribution theory of quadratic forms;Baksalary;Sankhy,1980
3. Remarqnes sur les echantillons Gaussien;Baldessari;Publ. de ľlnstitut de Statist, de ľUniversité de Paris XIV,1965
4. Hermitian and nonnegative finite solutions of some matrix equations connected with distribution of quadratic forms;Bhimasankaram;Sankhyā,1980
5. Normal regression theory in the presence of intra-class correlation;Halperin;Ann. Math. Statist.,1951