W. Gruenberg, A. J. Weir (2010, ISBN 978-0-387-90227-2) Fermat's Last Theorem: A Genetic Introduction to Algebraic Number Theory, Harold M. Edwards (2000
16 (=No. 2): 119–170. JSTOR 2986734. ^ Martin-Löf, P. The continuity theorem on a locally compact group. Teor. Verojatnost. i Primenen. 10 1965 367–371