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References

  • Baldock, G. R. & Walter, W. G. (1946). A new electronic analyser. Electron. Engng, 18, 339.
  • Ellis, N. W. & Last, S. L. (1953). Analysis of the normal electro-encephalogram. Lancet, 1, 112.
  • Fisher, R. A. (1936). The use of multiple measurements in taxonomic problems. Ann. Eugen., Lond., 7, 179.
  • Walter, W. G. (1943a). An automatic low-frequency analyser. Electron. Engng, 16, 9.
  • Walter, W. G. (1943b). An improved low-frequency analyser. Electron. Engng, 16, 236.