TY  - JOUR
T1  - On the Friction of Water against Solid Surfaces of Different Degrees of Roughness. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 31
SP  - 54
EP  - 58
PY  - 1880/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1880.0007
M3  - doi:10.1098/rspl.1880.0007
AU  - Unwin, W.
ER  -