TY  - JOUR
T1  - On the Calculus of Symbols.--Third Memoir. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 12
SP  - 579
EP  - 579
PY  - 1862/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1862.0129
M3  - doi:10.1098/rspl.1862.0129
AU  - Russell, W.
ER  -