"elliptical" . "Elliptic distributions" . . "generalized multivariate analysis" . "elliptically symmetric" . . . . . . . . "Elliptical distribution" . "spherical symmetry" . "elliptically contoured" . "jointly elliptically distributed" . "elliptically distributed" . "Generalized multivariate analysis" . . "elliptical distribution" . "elliptica" . "Elliptical distribution" . "skew elliptical distribution" . . . . .