@article{Denisiewicz:2018,
  author  = "A. Denisiewicz and T. Socha and K. Kula and M. Pasula",
  title   = "Influence of steel and polypropylene fibers addition on selected properties of fine-grained concrete",
  journal = "Civil and Environmental Engineering Reports",
  volume  = "No. 28 (4)",
  pages   = "138--148",
  year    = "2018",
  note    = "University of Zielona Góra Press, Zielona Góra",
}