@article{Szajna:2016,
author
=
"W.Szajna and P.Lechocka",
title
=
"Evaluation of the two methods of determining bulk density of sand: tapping fork test and vibrating table test",
journal
=
"Roads and Bridges - Drogi i Mosty",
volume
=
"Vol. 15",
pages
=
"5--20",
year
=
"2016",
}