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"Some positive definite functions on sets and their application to the ..."
Ole J. Heilmann et al. (1971)
- Ole J. Heilmann, Daniel J. Kleitman, Elliott H. Lieb, Seymour Sherman:
Some positive definite functions on sets and their application to the Ising model. Discret. Math. 1(1): 19-27 (1971)
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