Comparison of different methods to measure contact angles of soil colloids Shang, Jianying ; Flury, Markus ; Harsh, James B. ; Zollars, Richard L. Abstract Publication: Journal of Colloid and Interface Science Pub Date: December 2008 DOI: 10.1016/j.jcis.2008.09.039 Bibcode: 2008JCIS..328..299S