Raffo López L, Castro JA, Díaz España A. Balloon effects in coca crops in the Andean region (1990-2009). Apuntes CENES [Internet]. 2016 Jan. 26 [cited 2024 Nov. 25];35(61):207-36. Available from: https://revistas.uptc.edu.co/index.php/cenes/article/view/3426