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1
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2Published 1981“...HQ 1391 .N5 .W872...”
Conference Proceeding Book -
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5
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6
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7
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8
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9Published 1979“...HQ 1616 .W872...”
Book -
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15Published 1988“...HQ 1236.5 .U6 .P769...”
Book -
16Published 1987“...HQ 1236 .W872 pc...”
Book -
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18
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19
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20