[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; [Springfield, Va.] : [National Technical Information Service, distributor], 1991
"Proceedings of a conference sponsored by the National Institute of Standards and Technology, The Johns Hopkins University, the National Aeronautics and Space Administration, and the Defense Advanced Research Projects Agency and held at Goddard Space Flight Center, Greenbelt, Maryland, April 2-6, 1990."