TY  - JOUR
T1  - On Systems of Circles and Spheres. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 40
SP  - 242
EP  - 245
PY  - 1886/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1886.0029
M3  - doi:10.1098/rspl.1886.0029
AU  - Lachlan, R.
ER  -
