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Is this your account? Account Recovery Enter your email address and we'll send you an email that will allow you to recover your account. Registered User  Name christian aebi Member for 1 year Seen Dec 17 at 20:45 Website gradelle.educanet2.ch/christian.aebi/.ws_gen Location Thônex / Geneva / Switzerand Age 51

Just an ordinary math teacher...having fun playing around with math questions. Interests : history of mathematics, number theory, ... (and what I'm able to understand !)

 

 

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