@article{constrainedh1regularizationschemesfor,
  title = {Constrained $H^1$-regularization schemes for diffeomorphic image registration},
  author = {Andreas Mang and George Biros},
  year = {2015},
  eprint = {1503.00757},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1503.00757v3},
}