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1Published 1981“...HC 690 .E5 .C855...”
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2
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3
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4
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5
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6Published 1987“...HD 205 1987 .M266...”
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7
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8Published 1984“...HE 8699 .O28 .E61...”
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20Published 1993“...HC 684 .Z9 .E5 .S689...”
Conference Proceeding Book