Jorn Steuding. The world of p-adic numbers and p-adic functions(PDF). Proc. Sci. Seminar Faculty of Physics and Mathematics, Siauliai University. 2002, (5): 90–107 [2014-05-19]. (原始内容存档(PDF)于2014-05-20) (英语).
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Stany De Smedt, Andrew Khrennikov. A p-adic behaviour of dynamical systems(PDF). Revista Mathematica Complutense. 1999, 12 (2): 301–323 [2014-05-17]. (原始内容存档(PDF)于2014-05-17) (英语).
Jorn Steuding. The world of p-adic numbers and p-adic functions(PDF). Proc. Sci. Seminar Faculty of Physics and Mathematics, Siauliai University. 2002, (5): 90–107 [2014-05-19]. (原始内容存档(PDF)于2014-05-20) (英语).
Stany De Smedt, Andrew Khrennikov. A p-adic behaviour of dynamical systems(PDF). Revista Mathematica Complutense. 1999, 12 (2): 301–323 [2014-05-17]. (原始内容存档(PDF)于2014-05-17) (英语).