@Misc{ 
  PigTod26,
  author = { Pigazzini, Alexander and Toda, Magdalena },
  title = { The $r^\sharp$ invariant as a discriminant for the survival of the H-flux under T-duality on product manifolds },
  journal = {  },
  year = { 2026 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/652/ },
  note = { cvgmt preprint}
}