Correction to a paper by D.G. Lampard ["On the use of Laguerre polynomials in treating the envelope and phase components of narrow-band Gaussian noise"]

As a consequence of a recent communication from D.G. Lampard of Sidney, Australia, the author wishes to make a correction in his recent paper ("On the use of Laguerre polynomials in treating the envelope and phase components of narrow-band Gaussian noise," IRE Transactions on Information Theory, vol. IT-5, pp. 102-105; September, 1959) in which the following sentence appears: "Eq. (4) does not seem to have been observed before except by Levin6 whose formula is in error." Mr. Lampard kindly points out that (4) has been observed before by several other authors, including himself.