%0 Journal Article %A GROSSE-ERDMANN, KARL-G. %T FREQUENTLY HYPERCYCLIC BILATERAL SHIFTS %J Glasgow mathematical journal %D 2019 %P 271-286 %V 61 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089518000204/ %R 10.1017/S0017089518000204 %F 10_1017_S0017089518000204