M. L. González Portela, R. N. Moreira Ortega, and A. Checa Godoy, “Sources and Characteristics of early journalism in Loja (Ecuador): 1856-1895”, Hist. Comun. Soc., vol. 18, pp. 795–811, Feb. 2014, doi: 10.5209/rev_HICS.2013.v18.44366.