@misc{Piotrowiak_I._Local,
 author={Piotrowiak, I. and Słupski, M. and Włodarczyk, Z.},
 copyright={Włodarczyk, Z. i in.},
 address={Londyn},
 howpublished={online},
 publisher={BioMed Central Ltd},
 language={eng},
 title={Local recurrence and distant metastases 18 years after resection of the greater omentum hemangiopericytoma},
 type={postprint},
}