@article{KitzerowHackbuschJensenetal.2020,
  author    = {Janina Kitzerow and Matthes Hackbusch and Katrin Jensen and Meinhard Kieser and Michele Noterdaeme and Ulrike Fr{\"o}hlich and Regina Taurines and Julia Geißler and Nicole Wolff and Veit R{\"o}ßner and Nico Bast and Karoline Teufel and Ziyon Kim and Christine M. Freitag},
  title     = {Study protocol of the multi-centre, randomised controlled trial of the Frankfurt Early Intervention Programme A-FFIP versus early intervention as usual for toddlers and preschool children with Autism Spectrum Disorder (A-FFIP study)},
  journal   = {Trials},
  volume    = {21},
  number    = {217},
  pages     = {1 -- 17},
  doi       = {10.1186/s13063-019-3881-7},
  year      = {2020},
}