Schlësselwuert Biodynamic Agriculture

Utopiaggia - Un rêve de liberté en Italie

Utopiaggia - Un rêve de liberté en Italie (2023)

Permaculture, la voie de l'autonomie

Permaculture, la voie de l'autonomie (2019)

Dr Rudolf Steiner and the Science of Spiritual Realities

Dr Rudolf Steiner and the Science of Spiritual Realities (1993)

One Man, One Cow, One Planet

One Man, One Cow, One Planet (2007)

Sovereign Soil (2019)

Perfect Compost: a Master Class with Peter Proctor

Perfect Compost: a Master Class with Peter Proctor (2012)

Michael Schmidt: Organic Hero or Bioterrorist

Michael Schmidt: Organic Hero or Bioterrorist (2008)