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Research supported by the Vanderbilt University Research Council.
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Gould, M., Morel, A.C. & Tsinakis, C. Cofinality of algebras. Algebra Universalis 22, 253–278 (1986). https://doi.org/10.1007/BF01224031
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DOI: https://doi.org/10.1007/BF01224031