Astro Physicist figures out fastest boarding plan(overheadbin.msnbc.msn.com)
overheadbin.msnbc.msn.com
Astro Physicist figures out fastest boarding plan
http://overheadbin.msnbc.msn.com/_news/2011/08/30/7527894-physicist-figures-out-fastest-boarding-plan
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The paper itself is here: http://arxiv.org/abs/1108.5211