?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Q&rft.aulast=Sun&rft.au=Sun%2C+Q&rft.volume=114&rft.issn=0266-352X&rft.atitle=Minimum+image+quality+for+reliable+optical+characterizations+of+soil+particle+shapes&rft.date=October+2019&rft.title=Computers+and+Geotechnics&rft.genre=article