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First Author:
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| Marcelo Brutti Righi |
| Federal University of Santa Maria |
| marcelobrutti@hotmail.com |
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Second Author:
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| Kelmara Mendes Vieira |
| Federal University of Santa Maria |
| kelmara@terra.com.br |
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Third Author:
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| Daniel Arruda Coronel |
| Federal University of Santa Maria |
| daniel.coronel@ufv.br |
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Fourth Author:
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| Reisoli Bender Filho |
| Federal University of Santa Maria |
| reisolibender@yahoo.com.br |
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Five Author:
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| Paulo Sergio Ceretta |
| Federal University of Santa Maria |
| ceretta10@gmail.com |
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