Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WAKIMOTO Tatsuro and KATOH Kenji and HIGASHINE Mituyoshi,New Optical Method to Measure Slight Difference of Contact Angle,Journal of the Japanese Society for Experimental Mechanics,13464930,The Japanese Society for Experimental Mechanics,2009,9,4,324-329,https://cir.nii.ac.jp/crid/1390282680166232704,https://doi.org/10.11395/jjsem.9.324