@article{timansdelphilss,
	author          = {Werner Timans and Kees Ahaus and Rini van Solingen},
	title           = {A Delphi study on Six Sigma tools and techniques},
	journal         = {International Journal of Six Sigma and Competitive Advantage},
	year            = {2009},
	volume          = {5},
	number          = {3},
	pages           = {205--221},
	issn            = {1479-2494},
	url             = {http://inderscience.metapress.com/content/729U107740R03868},
	group           = {SE}
}