1
published 2018
Journal
2
published 2017
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3
published 2017
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4
published 2012
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5
published 2008
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6
published 2007
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7
published 2001
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8
published 2000
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9
published 1998
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10
published 1998
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11
published 1998
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12
published 1993
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13
published 1989
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14
published 1988
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15
published 1985
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16
published 1983
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17
published 1978
Journal
18