http://www.vinokurov.info/downloads/TheoryofEnclaves%20rus%20supplementary.pdf has been crawled 11 times going all the way back to July 6, 2008.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ

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Note

This calendar view maps the number of times http://www.vinokurov.info/downloads/TheoryofEnclaves%20rus%20supplementary.pdf was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.