TY  - JOUR
T1  - On a Series for Calculating the Ratio of the Circumference of a Circle to Its Diameter
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 11
SP  - 489
EP  - 491
PY  - 1860/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1860.0105
M3  - doi:10.1098/rspl.1860.0105
AU  - Clarkson, A.
ER  -