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9Foilsithe / Cruthaithe 1992Ábhair “...Environmental protection Antarctica Congresses....”
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10Foilsithe / Cruthaithe 1986Ábhair “...Environmental protection Moral and ethical aspects....”
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11Foilsithe / Cruthaithe 1990ÁbhairLEABHAR
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13Foilsithe / Cruthaithe 1977ÁbhairImeacht comhdhála LEABHAR
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14Foilsithe / Cruthaithe 1993ÁbhairLEABHAR
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16Foilsithe / Cruthaithe 2001Ábhair “...Environmental protection Research Arctic regions Congresses....”
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