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[1]
![](images/www.png) http://link.springer.com Last accessed : 2017/08/09
| 2017
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![](images/imprime.png) |
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[2]
![](images/www.png) http://rd.springer.com Last accessed : 2013/08/26
| 2013
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![](images/imprime.png) |
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[3]
![](images/www.png) http://www.palgrave-journals.com Last accessed : 2013/02/14
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![](images/imprime.png) |
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[4]
| 2012
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![](images/imprime.png) |
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[5]
![](images/www.png) http://books.google.fr Last accessed : 2012/05/03
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![](images/imprime.png) |
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[6]
| 2009
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![](images/imprime.png) |
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