@article{zaichenko_2021, 
  title={ANALYSIS OF TIME SERIES METHODS BASED ON FLUCTUATION VOLATILITY OF GERMAN MARKET COMPANIES}, 
  DOI={10.32838/2663-5941/2021.6/13}, 
  publisher={V.I. Vernadsky Taurida National University}, 
  author={Zaichenko, V.V.}, 
  year={2021}
  }