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Pages 59-60

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From page 59...
... 59 American Public Transportation Association (APTA) , White Paper: Operational Strategies for Emergency Smoke Ventilation in Tunnels, APTA SS-SEM-WP-013-10, APTA, Washington, D.C., 2010.
From page 60...
... 60 Li, L., X Cheng, Y

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