@conference{bibcite_952, keywords = {Invited}, author = {Francesco Sottile}, title = { X-ray spectroscopies to probe core and valence excitations: many-body Green{\textquoteright}s functions approach}, year = {2026}, journal = {Journ{\'e}es de la Mati{\`e}re Condens{\'e}e (JMC) }, month = {10/2026}, address = {Toulouse}, }