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• Watanabe, H.; Rossiter, W. J., Jr.
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  Pulse-Echo Ultrasonic Evaluation of the Integrity of Seams of Single-Ply Roofing Membranes: Laboratory Evaluation of a Prototype Test Apparatus.
  Takenaka Corp., Tokyo, Japan; National Institute of Standards and Technology, Gaithersburg, MD
  Naval Facilities Engineering Command, Port Hueneme, CA, NISTIR 4424, December 1990, 46 p.

• Watanabe, H.; Rossiter, W. J., Jr.
  view article (1.0)

  Pulse-Echo Ultrasonic Evaluation of the Integrity of Seams of Single-Ply Roofing Membranes: Results of Field Investigations and Recommendations.
  Takenaka Corp., Tokyo, Japan; National Institute of Standards and Technology, Gaithersburg, MD
  Naval Facilities Engineering Command, Port Hueneme, CA, NISTIR 4425, November 1990, 41 p.