Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MET_1972__19_175543, author = {R.P. Gupta}, title = {Principal {Components} {Analysis} in the {Complex} {Case.}}, journal = {Metrika}, pages = {150--155}, publisher = {mathdoc}, volume = {19}, year = {1972}, zbl = {0256.62051}, url = {http://geodesic.mathdoc.fr/item/MET_1972__19_175543/} }
R.P. Gupta. Principal Components Analysis in the Complex Case.. Metrika, Tome 19 (1972), pp. 150-155. http://geodesic.mathdoc.fr/item/MET_1972__19_175543/