Miller, A. Z., Rogerio-Candelera, M. A., Dionísio, A., Macedo, M. F. and Saiz-Jiménez, C. (2012) “Assessing the influence of surface roughness on the epilithic colonisation of limestones by non-contact techniques”, Materiales de Construcción, 62(307), pp. 411–424. doi: 10.3989/mc.2012.64410.