TY  - JOUR
T1  - On the Conditions for the Existence of Three Equal Roots, or of Two Pairs of Equal Roots of a Binary Quartic or Quintic. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 16
SP  - 229
EP  - 229
PY  - 1867/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1867.0041
M3  - doi:10.1098/rspl.1867.0041
AU  - Cayley, A.
ER  -