@article{wirtingerscalculusingeneralhilbertspaces,
  title = {Wirtinger's Calculus in general Hilbert Spaces},
  author = {P. Bouboulis},
  year = {2010},
  eprint = {1005.5170},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1005.5170v1},
}