%0 Journal Article %A Kahan, W. %T Circumscribing an Ellipsoid about the Intersection of Two Ellipsoids %J Canadian mathematical bulletin %D 1968 %P 437-441 %V 11 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-050-2/ %R 10.4153/CMB-1968-050-2 %F 10_4153_CMB_1968_050_2