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Published in 1999
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3
4
Published in 2004
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12
Published in 1994
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14
by Revelo, Jorge; Cazco, Carlos; Castillo, Néstor; Sandoval, Alicia; Sánchez Delgado, Gabriela Alexandra; Lomas, Luis; Corrales, Andrés
Published in 2009
Repository
15
16
by Viteri D., Pablo; León F., Juan; Vásquez C., Wilson; Encalada, Claudio; Martínez, Aníbal; Revelo, Jorge; Posso, Manuel; Hinojosa, Milton
Published in 2010
Repository
17
Published in 2004
Repository
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