@article{SchermellehEngelKerwerKlein2014,
  author    = {Karin Schermelleh-Engel and Martin Kerwer and Andreas G. Klein},
  title     = {Evaluation of model fit in nonlinear multilevel structural equation modeling},
  journal   = {Frontiers in psychology},
  volume    = {5},
  number    = {Article 181},
  doi       = {10.3389/fpsyg.2014.00181},
  year      = {2014},
}