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(pdf)存档于2007-09-26). 引文使用过时参数coauthors (帮助) Sohl, F.; Spohn, T; Breuer, D.; Nagel, K. Implications from Galileo Observations on the Interior Structure and
ISBN 0-387-98727-4) One-Parameter Semigroups for Linear Evolution Equations, Engel, Nagel (2000, ISBN 978-0-387-98463-6) Elementary Methods in Number Theory, Melvyn