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1de réir Asgarkhani, MehdiÁbhair “...Artificial satellites in telecommunication....”
Foilsithe / Cruthaithe 1987
Tráchtas LEABHAR -
2de réir Rom, RaphaelÁbhair “...Artificial satellites in telecommunication....”
Foilsithe / Cruthaithe 1990
LEABHAR