%0 Journal Article %T A Cardinal Structure Theorem for an Ultrapower %J Canadian mathematical bulletin %D 1985 %P 472-473 %V 28 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-057-6/ %R 10.4153/CMB-1985-057-6 %F 10_4153_CMB_1985_057_6