@Article{ 
  GhoKac25,
  author = { Ghosh, Mrityunjoy and Kachmar, Ayman },
  title = { Isoperimetric inequality with zero magnetic field in doubly connected  domains },
  journal = { Math. Nachr. },
  year = { 2026 },
  doi = { 10.1002/mana.70136 },
  volume = { 299 },
  number = { 1230–1240 },
  pages = { 11 },
  URL = { http://cvgmt.sns.it/paper/7351/ },
  note = { cvgmt preprint}
}