id	keyword
fis-2908	wood
fis-2908	spruce
fis-2908	values
fis-2908	density
fis-2908	fracture
fis-2908	toughness
fis-2908	doi
fis-2908	hardwood
fis-2908	softwood
fis-2908	ratio
fis-2908	properties
fis-2908	species
fis-2908	birch
fis-2908	pine
fis-2908	fig
fis-2908	papers
fis-2908	poisson
fis-2908	strutturale
fis-2908	integrità
fis-2908	frattura
fis-2908	bartolucci