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1
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2
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3
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4Published 1980“...HG 2039 .N5 .N532 c...”
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5
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6
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7Published 1981“...HQ 1381 .W872...”
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8
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9
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10Published 1980“...HF 5657 .N532...”
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11
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12Published 1993“...HJ 2210.5 .A1 .A532...”
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13
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14
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15Published 1976“...HF 5658.5 .U58 c...”
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16Published 1987“...HC 670 .I5 .N5322...”
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17
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18
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19
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20