Hardness of the Schizolobium amazonicum wood - Almeida, Diego Henrique de; Cavalheiro, Raquel Schmitt; Ferro, Fabiane Salles; Almeida, Tiago Hendrigo de; Christoforo, André Luis; Calil Júnior, Carlito; Lahr, Francisco Antonio Rocco (Advanced Materials Research, 2014)