Ayuga-Téllez, E., Contato-Carol, M. L., García-Ventura, C., Sánchez de Medina, Álvaro, Grande-Ortiz, M. Ángeles and González-García, C. (2017) “Obtaining unit values through the type-trees method for urban trees appraisal: application in Santiago del Estero (Argentina) and Madrid (Spain)”, Bosque, 37(1), pp. 53–62. doi: 10.4067/S0717-92002016000100006.