RED BOOK : MAINTENANCE OF INTERNATIONAL TELEGRAPHY, FASCIMILE AND LEASED CIRCUITS. RECOMMENDATIONS M.800-M.1375 - INTERNATIONAL TELECOMMUNICATION UNION (GINEBRA, 1985)
VIIITH PLENARY ASAMBLY. MALAGA-TORREMOLINOS, 8-19 OCTOBER 1984.
Keywords: INGENIERIA ELECTRONICA; RED ALAMBRICA