http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Effect of minor reactive metal additions on fracture toughness of iron-12-percent nickel alloy at -196 ̊and 25 ̊C / Walter R. Witzke and Joseph R. Stephens ; Lewis Research Center, Cleveland, Ohio
National Aeronautics and Space Administration.