"Matteo dfAstuto,Ikuya Yamada,Paola Giura,Lorenzo Paulatto,Andrea Gauzzi,Moritz  Hoesch,Michael  Krisch,Masaki Azuma,Mikio Takano","Phonon anomalies and lattice dynamics in the superconducting oxychlorides Ca<sub>2</sub>|<sub>x</sub>CuO<sub>2</sub>Cl<sub>2</sub>",,"PHYSICAL REVIEW B",,"Vol. 88",,"pp. 014522",2013,July