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1Published 1979Conference Proceeding Book
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2
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3
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4
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5Published 1981Conference Proceeding Book
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6
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7Published 1984Book
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8Published 1984Government Document Book
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9
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10Published 1983Conference Proceeding Book
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11
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12
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13
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14Published 1976Microform Book
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15
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16Published 1990Conference Proceeding Book
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17
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18
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19
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20Published 1994Book