Geyer, G., Nowicki, J., ?yli?ska, A., Landing, E., 2019. Comment on: Álvaro, J. J., Esteve, J. & Zamora, S. 2019. Morphological assessment of the earliest paradoxidid trilobites (Cambrian Series 3) from Morocco and Spain. Geological Magazine 156, 1691-1707. doi:10.1017/S0016756818000961

Lenardi, M., Merwin, D.E., 2010. Towards Automating Artifact Analysis: A Study Showing Potential Application in Computer Vision and Morphometrics to Artifact Typology, in: Elewa, A.M.T. (Ed.), Morphometrics For Nonmorphometricians. Springer, Berlin, pp. 289-305. doi:10.1007/978-3-540-95853-6_13