Where can I find the C++11 standard papers? [duplicate]

You can get the full, final standard directly from the ISO, or some national bodies.

You probably don't want to get in a hurry though. The ANSI (for one) normally re-publishes an official version with identical technical material -- basically the only change is saying "ANSI/ISO" on the the title page instead of just "ISO". At least for past versions, however, the price has been much more reasonable (~$30US instead of ~$400US).

Edit: As expected, the standard is now available for $30US.

If you don't really need and can't afford to shell out the money for the real thing, you can make do with the latest publicly available draft: N3242.

IMO cppreference.com can be a free alternative to buying the actual standard.