{{Cite journal| doi = 10.1016/j.compstruct.2015.09.043| volume = 135| pages = 217–223| last1 = Hadjadj| first1 = A.| last2 = Jbara| first2 = O.| last3 = Tara| first3 = A.| last4 = Gilliot| first4 = M.| last5 = Malek| first5 = F.| last6 = Maafi| first6 = E.M.| last7 = Tighzert| first7 = L.| title = Effects of cellulose fiber content on physical properties of polyurethane based composites| journal = Composite Structures| date = 2016}}