1. EPFL, Ecole Polytechnique Fédérale de Lausanne; Institute of Materials; CH-1015 Lausanne Switzerland
2. HE-ARC, Haute Ecole Arc; Conservation-restauration; CH-2000 Neuchâtel Switzerland
3. SSICA; Stazione Sperimentale per l'Industria delle Conserve Alimentari; I-43121 Parma Italy