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Playing With the Index of M-Theory.
Del Zotto M, Nekrasov N, Piazzalunga N, Zabzine M. Del Zotto M, et al. Among authors: nekrasov n. Commun Math Phys. 2022;396(2):817-865. doi: 10.1007/s00220-022-04479-7. Epub 2022 Aug 23. Commun Math Phys. 2022. PMID: 36366771 Free PMC article.