@article{GDZPPN002452855, title = {Principal Components Analysis in the Complex Case.}, journal = {Metrika}, volume = {19}, year = {1972}, pages = {150-155}, zbl = {0256.62051}, url = {http://dml.mathdoc.fr/item/GDZPPN002452855} }
Gupta, R.P. Principal Components Analysis in the Complex Case.. Metrika, Tome 19 (1972) pp. 150-155. http://gdmltest.u-ga.fr/item/GDZPPN002452855/