Title:Using frontier models to mitigate omitted variable bias in hedonic pricing models : a case study for air quality in Bogotá, Colombia / Usando modelos de frontera para mitigar sesgo de variables omitidas en modelos de precios hedónicos : un estudio de caso para calidad de aire en Bogotá, Colombia
Title:Sex differences in the social behavior of wild brown spider monkeys (Ateles hybridus) at a forest fragment in the Magdalena River Valley, Colombia