@article{Olfs2021,
  author    = {Olfs, Hans-Werner},
  title     = {Organic fertilization in maize cropping systems : Measures to reduce N losses},
  journal   = {Agronomy},
  volume    = {11},
  number    = {4},
  issn      = {2073-4395},
  doi       = {10.3390/agronomy11040793},
  institution = {Fakult{\"a}t AuL},
  pages     = {793},
  year      = {2021},
  language  = {en}
}