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1Published 1983“...HG 189.5 .R454...”
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2
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3
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4Published 1980“...HA 3036 .C748...”
Conference Proceeding -
5
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6
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7Published 1991“...HA 3175 .N532 g...”
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8
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9Published 1991“...HB 3692.5 .A3 .P8313...”
Book -
10
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11
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12Published 1984“...HG 189.5 .S785...”
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13
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14Published 1981“...HA 3184 .N5323...”
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15Published 1956“...HD 7071 .N532 c...”
Book -
16Published 1977“...HA 3184 .N5322 1977...”
Book -
17