Lorenzini, Enrico.
Cambridge, Mass. : Smithsonian Institution Astrophysical Observatory ; Huntsville, Ala. : National Aeronautics and Space Administration, Marshall Space Flight Center, [1985]
1985
Hedgepeth, John M.
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : For sale by the National Technical Information Service, 1989]
1989