{{Cite journal| volume = 13| issue = 5| pages = 541–570| last1 = Gagnon| first1 = J.-S.| last2 = Lovejoy| first2 = S.| last3 = Schertzer| first3 = D.| title = Multifractal earth topography| journal = Nonlinear Processes in Geophysics| date = 2006}}