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ON STATIONARY PROCESSES IN THE PLANE Get access P. WHITTLE P. WHITTLE Applied Mathematics Laboratory, New Zealand Department of Scientific and Industrial Research Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 41, Issue 3-4, 3 December 1954, Pages 434–449, https://doi.org/10.1093/biomet/41.3-4.434 Published: 03 December 1954
Peter Whittle (Fri,) studied this question.