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1by Weymann, R. J.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1966
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2by Barry, D. C.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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3by Pacholczyk, A. G.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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4by Lynds, B. T.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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5by Williams, R. E.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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6by Weymann, R. J.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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7“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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8by Irwin, J. B.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1967
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9“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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10“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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11“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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12“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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13by Westerlund, B. E.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1969
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14by Weymann, R. J.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1969
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15“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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16“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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17“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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18by Fitch, W. S.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1970
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19by Tapia, S.“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
Published 1988
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20“...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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