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| Welcome to L.-S. Yan's Homepage |
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| If I have learned anything, It was beacuse I stood on the shoulders of giants. --Isaac Newton |
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| You are the |
| visitor. |
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| Welcome to L.-S. Yan's Homepage |
|
|
| If I have learned anything, It was beacuse I stood on the shoulders of giants. --Isaac Newton |
|
|
|
| You are the |
| visitor. |