@techreport{schwarz2020background,
  title = {Background report of Dutch asphalt mixtures 2020}
  author = {Schwarz, A., Overmars, L., Godoi Bizarro, D., Keijzer, E., Kuling, L. & van Horssen, A.},
  url = {https://www.asfaltblij.nl/media/2639/lca-achtergrondrapport-voor-nederlandse-asfaltmengsels-2020_v200928.pdf},
  year = {2020}
}