TY  - JOUR
T1  - On the Interchange of the Variables in Certain Linear Differential Operators
JF  - Philosophical Transactions of the Royal Society of London. A (1887-1895)
VL  - 181
SP  - 19
EP  - 51
PY  - 1890/01/01/
UR  - http://dx.doi.org/10.1098/rsta.1890.0004
M3  - doi:10.1098/rsta.1890.0004
AU  - Elliott, E.
ER  -