Serrano-Montes, J. L., Olmedo-Cobo, J. A., Gómez-Zotano, J. and Martínez-Ibarra, E. (2018): “"Dactylopius opuntiae" vs. ‘Opuntia ficus-indica’ in Spain: spatial and temporal analysis and landscape impact evaluation through on-line media”, Anales de Geografía de la Universidad Complutense, 38(1), pp. 195–217. doi: https://doi.org/10.5209/AGUC.60474.