@article{Brauner2012,
  author    = {Tom{\´a}š Brauner},
  title     = {Spontaneous symmetry breaking and Nambu-Goldstone bosons in quantum many-body systems},
  journal   = {Symmetry},
  volume    = {2.2010},
  number    = {2},
  pages     = {609 -- 657},
  doi       = {10.3390/sym2020609},
  year      = {2012},
}