1. Die Ordnung der Schafarewitsch–Tate Gruppe kann beliebig groß werden;Bölling;Math. Nachr.,1975
2. Arithmetic on curves of genus, 1, VI. The Tate–Šafarevič group can be arbitrarily large;Cassels;J. Reine Angew. Math.,1964
3. Period-index problems in WC-groups I: elliptic curves;Clark;J. Number Theory,2005
4. There are genus one curves of every index over every number field;Clark;J. Reine Angew. Math.,2006