@article{NunnerBruneKoppetal.2003,
  author    = {Tamara Nunner and Philipp Brune and Thilo Kopp and Marco Windt and Markus Gr{\"u}ninger},
  title     = {Phonon-assisted magnetic absorption in (La,Ca)14 Cu24O41: contribution of different phonon modes},
  journal   = {Acta Physica Polonica B},
  volume    = {34},
  number    = {2},
  pages     = {1545 -- 1548},
  url       = {http://www.actaphys.uj.edu.pl/fulltext?series=Reg\&vol=34\&page=1545},
  year      = {2003},
}