@article{GroegerTrenkler,
  author    = {Gr{\"o}ger, Herbert and Trenkler, Luigi},
  title     = {Zen and systemic therapy},
  series = {Brief Strategic and Systemic Therapy European Review},
  journal   = {Brief Strategic and Systemic Therapy European Review},
  number    = {2},
  pages     = {10 -- 30},
  subject      = {Systemic},
  language  = {en}
}
@article{Groeger,
  author    = {Gr{\"o}ger, Herbert},
  title     = {Rezension Holm von Egidy: Beobachtung von Wirklichkeit. Differenztheorie und die zwei Wahrheiten in der buddhistischen Madhyamika-Philosophie},
  series = {Systeme},
  journal   = {Systeme},
  number    = {2},
  pages     = {284 -- 286},
  subject      = {Systemic},
  language  = {en}
}