Reprint J.M. Costa, "DS1 Services and Standards", in The Froehlich

Reprint
J.M. Costa, "DS1 Services and Standards", in The
Froehlich/Kent Encyclopedia of Telecommunications, Vol. 6,
Marcel Dekker, Inc., New York, New York, USA, 1993,
pp. 361-382.
Copyright © 1993 by Marcel Dekker, Inc. Reprinted from The
Froehlich/Kent Encyclopedia of Telecommunications, Vol. 6,
New York, USA, 1993, pp. 361-382.
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