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Journal Article Perturbation Theory and the Subsidy-Stress Gradient Get access Eugene P. Odum, Eugene P. Odum Search for other works by this author on: Oxford Academic Google Scholar John T. Finn, John T. Finn Search for other works by this author on: Oxford Academic Google Scholar Eldon H. Franz Eldon H. Franz Search for other works by this author on: Oxford Academic Google Scholar BioScience, Volume 29, Issue 6, June 1979, Pages 349–352, https://doi.org/10.2307/1307690 Published: 01 June 1979 Article history Accepted: 14 March 1979 Published: 01 June 1979
Odum et al. (Fri,) studied this question.