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1
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2
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3
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4
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5Published 1977“...HC 663 .S471...”
Conference Proceeding Book -
6
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7Published 1978“...HF 1411 .B565...”
Book -
8
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9Published 1975“...HD 9576 .N36 .M627...”
Book -
10
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11
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12
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13Published 1980“...HC 79 .E5 .E195...”
Book -
14
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15
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16
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17Published 1979“...HC 621 .R432...”
Book -
18
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19
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20