@article{AlSaedyTarchanov2020,
  author    = {Ammar Jaffar Muhesin Al-Saedy and Nikolaj Nikolaevič Tarchanov},
  title     = {A degree theory for Lagrangian boundary value problems},
  journal   = {Žurnal Sibirskogo Federalʹnogo Universiteta = Journal of Siberian Federal University; mathematics \& physics},
  volume    = {13},
  number    = {1},
  pages     = {5 -- 25},
  doi       = {10.17516/1997-1397-2020-13-1-5-25},
  year      = {2020},
}