CERN Accelerating science

@techreport{Beckers:699401,
      author        = "Beckers, J and Patera, J and Perroud, M and Winternitz, P",
      title         = "{Subgroups of the Euclidean group and symmetry group and
                       symmetry breaking in nonrelativistic quantum mechanics}",
      reportNumber  = "CRM-589",
      year          = "1976",
      url           = "https://cds.cern.ch/record/699401",
}