1. Czech Technical University in Prague,Czech Republic
2. Military History Institute Prague,Aviation Museum Kbely,Czech Republic
3. Université de Toulouse, CNRS,TRACES UT2J,France
4. Université de Toulouse,CEMES-CNRS,France
5. University of Ferrara,Centro di Studi sulla Corrosione e Metallurgia “A. Daccò”,Italy
6. Alma Mater Studiorum University of Bologna,Italy
7. GPLA-Arc’Antique,Département de Loire Atlantique,France