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

K. Pearson, L. N. G. Filon
1898 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
doi:10.1098/rsta.1898.0007 fatcat:6edowc4yb5cvveiip2s2dicska