@InProceedings{Szajna:2016,
  author  = "W. Szajna and P. Lechocka",
  title       = "The influence of a laboratory testing method on the index of density of sand",
  booktitle   = "Proceedings of the World Congress on Civil, Structural and Environmental Engineering - CSEE' 16; ISBN: 9781927877180",
  address     = "Prague, Czechy",
  publisher   = "Ottawa, International ASET Inc.",
  volume      = "Paper No. ICGRE 114",
  pages       = "1--6",
  year        = "2016",
}