http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
On the feasibility of quantitative ultrasonic determination of fracture toughness
National Aeronautics and Space Administration.
Scientific and Technical Information Branch,
1 online resource (36 pages) : illustrations.
Title from title screen (viewed Feb. 10, 2016).
Prepared for Lewis Research Center NSG-3269