{{Cite conference| last1 = Robert| first1 = P.| last2 = Gromaire-Mertz| first2 = M.C.| last3 = De Gouvello| first3 = B.| last4 = Chebbo| first4 = G.| title = The impact of roofing materials on metal runoff in urban stormwater| booktitle = 5th World Wide Workshop for Young Environmental Scientists (WWW-YES)| location = Vitry-sur-Seine, France| date = 2006}}