1. Laboratory of Analysis and Non-Destructive Investigation of Heritage Objects; National Museum in Krakow; Krakow Poland
2. Faculty of Chemistry, Cultural Heritage Research Laboratory; University of Wroclaw; Wroclaw Poland
3. Faculty of Chemistry, Division of Chemical Engineering; Wroclaw University of Technology; Wroclaw Poland
4. Sculpture and Modern Art Conservation Studio; National Museum in Krakow; Krakow Poland