@book {Zuur2009Springer,
	title = {{A Beginner{\textquoteright}s Guide to R}},
	year = {2009},
	pages = {228},
	publisher = {Springer},
	organization = {Springer},
	author = {Zuur, A.F. and Ieno, E.N. and Meesters, E.H.W.G.}
}