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| Téléphone | 052 725 20 40 * |
| Jens Bohne, Agronomist Branch manager East-Switzerland | 071 229 00 90 |
| Alfred Zaugg, Geologist, hydrogeologist CHGEOL Expert | 052 725 20 42 |
| Martina Schmucki Schubiger, Vice branch manager East-Switzerland | 071 229 00 97 |
| René Löpfe, Dipl. Natural science ETH, Geologist CHGEOL Expert | 052 725 20 46 |
| Fax | 052 725 20 41 * |
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