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Hello Pierrecurie, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers:
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As far as I see, your interests seem to be more math than nuclear physics. :)
And one request. It is good if you use an edit summary explaining your changes to articles. Thanks and enjoy! Oleg Alexandrov (talk) 23:08, 10 December 2005 (UTC)