[1]
S. A. Barrezueta Unda, A. Paz González, Ángel E. Luna Romero, and E. Jaramillo Aguilar, “Variability of δ13C and δ15N in cocoa cultivars, in the province of El Oro, Ecuador”, terra, vol. 37, no. 2, pp. 131–140, Apr. 2019.