TY  - JOUR
T1  - On the Double Tangents of a Curve of the Fourth Order. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 11
SP  - 304
EP  - 305
PY  - 1860/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1860.0065
M3  - doi:10.1098/rspl.1860.0065
AU  - Cayley, A.
ER  -