TY  - JOUR
T1  - Mathematical Contributions to the Theory of Evolution. IV. On the Probable Errors of Frequency Constants and on the Influence of Random Selection on Variation and Correlation. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 62
SP  - 173
EP  - 176
PY  - 1897/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1897.0091
M3  - doi:10.1098/rspl.1897.0091
AU  - Pearson, K.
AU  - Filon, L.
ER  -