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The spectral analysis of two-dimensional point processes Get access M. S. BARTLETT, F.R.S. M. S. BARTLETT, F.R.S. University CollegeLondon Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 51, Issue 3-4, December 1964, Pages 299–311, https://doi.org/10.1093/biomet/51.3-4.299 Published: 01 December 1964
Marian Stewart Bartlett (Wed,) studied this question.