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harvard.edu
ui.adsabs.harvard.edu
Shang, Jianying; Flury, Markus; Harsh, James B.; Zollars, Richard L. (2008-12-15). "Comparison of different methods to measure contact angles of soil colloids". Journal of Colloid and Interface Science. 328 (2): 299–307. Bibcode:2008JCIS..328..299S. doi:10.1016/j.jcis.2008.09.039. PMID18930239.
nih.gov
pubmed.ncbi.nlm.nih.gov
Shang, Jianying; Flury, Markus; Harsh, James B.; Zollars, Richard L. (2008-12-15). "Comparison of different methods to measure contact angles of soil colloids". Journal of Colloid and Interface Science. 328 (2): 299–307. Bibcode:2008JCIS..328..299S. doi:10.1016/j.jcis.2008.09.039. PMID18930239.