1
Published 1997
Journal
2
Published 2010
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3
Published 2010
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4
Published 2010
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5
Published 2006
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6
Published 2007
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7
Published 2008
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8
Published 2008
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9
Published 2008
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10
Published 2008
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11
Published 1998
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12
Published 2008
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13
Published 2008
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14
Published 2008
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15
Published 2007
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16
Published 1990
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17
Published 1990
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19
Published 1991
Journal