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by Figueroa-garcia, Juan Carlos; Villegas, Juan G.; Orozco, Juan Rafael; et al.
by Figueroa-garcia, Juan Carlos; López-santana, Eduyn Ramiro; Rodriguez, José Ignacio
by David, Orjuela-cañon Alvaro; Figueroa-garcia, Juan Carlos; Arias-londoño, Julián David