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1
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2Published 1981“...HE 199.5 .O7 .N532...”
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3Published 1981“...HE 199.5 .O7 .N532 p...”
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4
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5Published 1981“...HE 5711 .A6 .E56 b...”
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6Published 1980“...HD 9975 .N52 .B388...”
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7Published 1973“...HE 291 .W66 s...”
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8