@article{FroSchw13,
  author    = {Andr{\'e} Frochaux and
               Lucas Heimberg},
  title     = {An Optimal Construction for the Barthelmann-Schwentick Normal Form on Classes of Structures of Bounded Degree},
  journal   = {CoRR},
  volume    = {abs/1810.12077},
  year      = {2018},
  ee        = {http://arxiv.org/abs/1810.12077}
}