@article{HartmannLewerenz2014,
  author    = {Heike Hartmann and Susann Lewerenz},
  title     = {Campaigning against Apartheid in East and West Germany},
  journal   = {Radical history review},
  number    = {119},
  pages     = {191 -- 204},
  doi       = {10.1215/01636545-2402068},
  year      = {2014},
}