@book {Regis2012,
	title = {{G2Sd, Grain-size statistics and description of sediment}},
	volume = {package ve},
	year = {2012},
	publisher = {R-project},
	organization = {R-project},
	address = {Vienna, Austria},
	url = {http://cran.r-project.org/web/packages/G2Sd/index.html},
	author = {R{\'e}gis, Gallon and J{\'e}r{\^o}me Fournier}
}
