@article{Greinert:2019,
  author  = "A. Greinert and M. Mrówczyńska and W. Szefner",
  title   = "The Use of Waste Biomass from the Wood Industry and Municipal Sources for Energy Production",
  journal = "Sustainability",
  volume  = "Vol. 11",
  number  = "no. 11",
  pages   = "1--19",
  year    = "2019",
}