Cryptanalytic Attacks on Pseudorandom Number Generators. J. Kelsey, B. Schneier, D. Wagner, and C. Hall.
Analysis of the Linux Random Number Generator. Zvi Gutterman, Benny Pinkas, Tzachy Reinman.
Cryptanalysis of the Random Number Generator of the Windows Operating System. Leo Dorrendorf, Zvi Gutterman, Benny Pinkas.