@article{s. tomao2006schwannoma,
  title={Retroperitoneal schwannoma presenting as an ovarian tumor},
  author={f. tomao,l. mariani,e. miele,g.p. spinelli,s. tomao},
  journal={European Journal of Gynaecological Oncology},
  volume={27},
  number={2},
  pages={185--187},
  doi = {10.12892/ejgo200602185},
  year={2006}
}