@article {609,
	title = {Index of efficiency for strength grading machines for solid wood},
	journal = {European Journal of Environmental and Civil Engineering},
	volume = {17},
	year = {2013},
	month = {2013},
	chapter = {263-269},
	author = {G. ROBLOT and L. BL{\'E}RON and F. MOTHE and R. COLLET}
}
