TY  - JOUR
T1  - On the Calculus of Symbols, with Applications to the Theory of Differential Equations
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 151
SP  - 69
EP  - 82
PY  - 1861/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1861.0006
M3  - doi:10.1098/rstl.1861.0006
AU  - Russell, W.
ER  -