?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.catena.2007.08.002&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A.&rft.au=Shamshad%2C+A.&rft.aulast=Shamshad&rft.title=Catena&rft.date=2008&rft.volume=72&rft.issn=03418162&rft.issue=3&rft.pages=423-432&rft.atitle=Development+of+an+appropriate+procedure+for+estimation+of+RUSLE+EI30+index+and+preparation+of+erosivity+maps+for+Pulau+Penang+in+Peninsular+Malaysia&rft.genre=article