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1Published 1993“...HD 4140.7 .P961...”
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2Published 1992“...HT 395 .E8 .C581...”
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3
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4
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5Published 1993“...HN 380.7 .A8 .C978...”
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6
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7
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8
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9
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10Published 1997“...HN 723.5 .O871...”
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11Published 1996“...HD 5764 .A6 .O58...”
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