@article{BleischwitzBahnWalkowiak2007,
  author    = {Bleischwitz, Raimund and Bahn-Walkowiak, Bettina},
  title     = {Aggregates and construction markets in Europe : towards a sectoral action plan on sustainable resource management},
  journal   = {Minerals \& energy},
  volume    = {22},
  number    = {3-4},
  pages     = {159 -- 176},
  year      = {2007},
  language  = {en}
}