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1Imeacht comhdhála LEABHARFoilsithe / Cruthaithe 1971“…International Power Sources Symposium…”
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2Imeacht comhdhála LEABHARFoilsithe / Cruthaithe 1975“…International Power Sources Symposium…”
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3Imeacht comhdhála LEABHARFoilsithe / Cruthaithe 1973“…International Power Sources Symposium Brighton…”
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4Imeacht comhdhála LEABHARFoilsithe / Cruthaithe 1966“…International Power Sources Symposium. Brighton, England…”
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5Imeacht comhdhála LEABHARFoilsithe / Cruthaithe 1975“…International Power Sources Symposium (9th : Brighton)…”