@article{radovan radonic2017of,
  title={Assesment of hemodynamics by basic ultrasound},
  author={radovan radonic},
  journal={Signa Vitae},
  volume={13},
  number={S1},
  pages={27--31},
  doi = {10.22514/SV131.032017.4 },
  year={2017}
}