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  1. 1

    Detection of speech over the telephone network per Valentus, Vincent Peter C.

    Publicat 1997
    Thesis

    Detection of speech over the telephone network
  2. 2

    International Code of Signals.

    Publicat 1987
    Llibre

    International Code of Signals.
  3. 3

    The 1931 international code of signals, vol. 2.

    Publicat 1933
    Llibre

    The 1931 international code of signals, vol. 2.
  4. 4

    International code of signals, 1969 .

    Llibre

    International code of signals, 1969 .

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