P. Gomes Ribeiro, J. Carlos Gonçalez, R. Gonçalves, R. Faustino Teles, and F. de Souza, “Ultrasound waves for assessing the technological properties of Pinus caribaea var hondurensis and Eucalyptus grandis wood”, Maderas-Cienc Tecnol, vol. 15, no. 2, pp. 195–204, Dec. 2014.