TY  - JOUR
T1  - On Operators in Physical Mathematics. Part I
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 52
SP  - 504
EP  - 529
PY  - 1892/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1892.0093
M3  - doi:10.1098/rspl.1892.0093
AU  - Heaviside, O.
ER  -