%0 Journal Article %A Bercovici, Hari %T Three Test Problems for Quasisimilarity %J Canadian journal of mathematics %D 1987 %P 880-892 %V 39 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1987-043-x/ %R 10.4153/CJM-1987-043-x %F 10_4153_CJM_1987_043_x