@article {botas2012stiffness,
	title = {The Stiffness of Syntactic Metal-Matrix Composites: A Statistical Model},
	journal = {ISRN Ceramics},
	volume = {2011},
	year = {2012},
	note = {n/a},
	publisher = {Hindawi Publishing Corporation},
	abstract = {n/a},
	author = {Botas, J. D. and {\'A}guas, H.}
}
