@article{a. basgul2006yolk,
  title={Primary yolk sac tumor (endodermal sinus tumor) of the vulva: case report and review of the literature},
  author={a. basgul,h. gokaslan,z.n. kavak,f.t. eren,n. bozkurt},
  journal={European Journal of Gynaecological Oncology},
  volume={27},
  number={4},
  pages={395--398},
  doi = {10.12892/ejgo200604395},
  year={2006}
}