@article{PradhanLuedekeRoesseretal.2013,
  author    = {Prajal Pradhan and Matthias K. B. L{\"u}deke and Dominik E. R{\"o}sser and J{\"u}rgen Kropp},
  title     = {Embodied crop calories in animal products},
  journal   = {Environmental research letters},
  volume    = {8},
  number    = {4},
  doi       = {10.1088/1748-9326/8/4/044044},
  year      = {2013},
}