How Tunnels Work

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  • Building Big
  • Extreme Engineering
  • Gundersen, P. Erik. "The Handy Physics Answer Book," Visible Ink Press, Michigan, 1995.
  • Lundhus, Peter. "Bridging Borders in Scandinavia," Scientific American Presents: The Tall, the Deep, the Long, 1999.
  • Macaulay, David. "Building Big: theCompanion to the PBS Series," Walter Lorraine Books, New York, 2000.
  • Massachusetts Turnpike Authority
  • Patel, Mukul and Michael Wright, Ed. "How Things Work Today." Crown Publishers, New York, 2000.
  • Sillery, Bob. "Subterranean Giant," Popular Science, June 2002.
  • "Tunnel Monsters at Work," Popular Science.
  • Vizard, Frank. "The Big Dig," Popular Science, June 2001, pp. 53-57.

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