@techreport{Walker-1999-3266,
  author = {Walker, L and Johnston, J},
  title = {Guidelines for the Assessment of Indirect and Cumulative Impacts as well as Impact Interactions},
  institution = {Hyder Consulting},
  year = {1999},
  month = {may},
  number = {NE80328/D1/3},
  url = {https://edz.bib.uni-mannheim.de/www-edz/pdf/1999/guideassess.pdf},
  keywords = {Physical Environment},
}