@book{LanghansScholwinNellesetal.2025,
  author    = {Gerhard Langhans and Frank Scholwin and Michael Nelles and S{\"o}ren Weinrich},
  title     = {Handbuch zur Bilanzierung von Biogasanlagen f{\"u}r Ingenieure - Band II},
  isbn      = {978-3-658-44322-1},
  doi       = {10.1007/978-3-658-44323-8},
  year      = {2025},
}