@article{SchulzGrimm2019,
  author    = {Petra Schulz and Angela Grimm},
  title     = {The age factor revisited : timing in acquisition interacts with age of onset in bilingual acquisition},
  journal   = {Frontiers in psychology},
  volume    = {9},
  number    = {Art. 2732},
  pages     = {1 -- 18},
  doi       = {10.3389/fpsyg.2018.02732},
  year      = {2019},
}