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NASA and the challenge of ISDN the role of satellites in an ISDN world : final report

[Boulder, Colo.] : The University of Colorado, Center for Space and Geosciences Policy ; [Washington, D.C.] : National Aeronautics and Space Administration, Office of Space Science and Applications, Communications and Information Systems Division, [1988] 1988

NASA and the challenge of ISDN the role of satellites in an ISDN world : final report

[Boulder, Colo.] : The University of Colorado, Center for Space and Geosciences Policy ; [Washington, D.C.] : National Aeronautics and Space Administration, Office of Space Science and Applications, Communications and Information Systems Division, [1988] 1988