selected publications academic article Character Evolution and Recircumscription of the Northern Andean Begonia Section Casparya (Begoniaceae): Begonia character evolution 2019-2-1 A new species of Begonia section Casparya from the Colombian eastern cordillera and a key to the Colombian Casparya 2017-9-15 conference poster Design of a density sensor based on piezoelectric crystals for the identification of the density profile in a wastewater treatment plant settler. 288-292. 2013-1-1