@article{10_1017_S0017089518000204,
     author = {GROSSE-ERDMANN, KARL-G.},
     title = {FREQUENTLY {HYPERCYCLIC} {BILATERAL} {SHIFTS}},
     journal = {Glasgow mathematical journal},
     pages = {271--286},
     year = {2019},
     volume = {61},
     number = {2},
     doi = {10.1017/S0017089518000204},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089518000204/}
}