1. Faculty of ForestryȘtefan cel Mare University Suceava Romania
2. National Institute for Research and Development of Isotopic and Molecular Technologies Cluj‐Napoca Romania
3. Stable Isotope LaboratoryȘtefan cel Mare University Suceava Romania
4. Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences Budapest Hungary
5. Paleoclimate Dynamics Group, Alfred‐Wegener‐Institute for Polar and Marine Research Bremerhaven Germany
6. Departement of GeographyJohannes Gutenberg University Mainz Germany
7. National Research and Development Institute for Forestry Marin Dracea Campulung Moldovenesc Romania
8. INCE—Mountain Economy Center CE‐MONT Vatra Dornei Romania