Howe R.M.Haneman V.S. Jr The solution of partial difference methods using the electronic differential analyserProceedings of the IRE Oct1953 pp 1497-1508
2.
3.
Stearns S.D.Digital simulation of frequency-limited random functionsSIMULATION January 1969
4.
Rice S.O.Mathematical analysis of random noiseBell System Technical Journal vol 241945