TY  - JOUR
T1  - On Linear Differential Equations.--No. VII
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 21
SP  - 20
EP  - 21
PY  - 1872/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1872.0006
M3  - doi:10.1098/rspl.1872.0006
AU  - Russell, W.
ER  -