Christian Steiner - Special session - Soil: sealing and consumption, 7th EUREGEO 2012
Christian Steiner - Land and Soil Alliance
https://ambiente.regione.emilia-romagna.it/en/geologia/video/7b0-euregeo-video-streaming/christian-steiner-sessione-speciale-suolo-impermeabilizzazione-e-consumo-7b0-euregeo-2012
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Christian Steiner - Special session - Soil: sealing and consumption, 7th EUREGEO 2012
Christian Steiner - Land and Soil Alliance