@InProceedings{Szajna:2019,
  author  = "W. Szajna and V. Sakharov and I. Boyko",
  title       = "Pile tests - 2019. Geotechnical characteristics of the site",
  booktitle   = "Challenges in Geotechnical Engineering - CGE 2019; ISBN: 9788394795122",
  address     = "Zielona Góra, Polska",
  publisher   = "Zielona Góra, Oficyna Wydaw. Uniwersytetu Zielonogórskiego",
  pages       = "43--48",
  year        = "2019",
}