TY  - JOUR
T1  - A Memoir Introductory to a General Theory of Mathematical Form. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 38
SP  - 393
EP  - 401
PY  - 1884/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1884.0116
M3  - doi:10.1098/rspl.1884.0116
AU  - Kempe, A.
ER  -