1
Published 2010
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2
Published 2009
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3
Published 2009
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4
Published 2008
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5
Published 1984
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6
Published 1963
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7
Published 1994
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8
Published 1991
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9
Published 1995
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10
Published 1992
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12
Published 1996
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13
Published 1997
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17
Published 1990
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18
Published 1993
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19
Published 1968
Journal
20
Published 1969
Journal