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July 2009. Just came back from my trip to China to see the TSE 2009.

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Eclipses Conference: Lunar and Solar Eclipses. Presentation given in the "Feria Internacional del Libro - IPN". Sorry, only in Spanish. Please click here.

Conferencia de Eclipses Lunares y Solares, impartida en la FIL del IPN. Favor de dar click aqui.