Alonso, A., Tejeda, E., Moreno, F., Rubio, M. C. and Medel, E. (2013) “A comparative study of natural zeolite and synthetic zeolite as an additive in warm asphalt mixes”, Materiales de Construcción, 63(310), pp. 195–217. doi: 10.3989/mc.2013.05911.