@unpublished{20.500.12614/3282, year = {2023}, month = {3}, url = {http://hdl.handle.net/20.500.12614/3282}, title = {Flat-band optical phonons in twisted bilayer graphene}, author = {Cappelluti, Emmanuele and Rostami, Habib and Guinea, Francisco and Silva-Guillén, Jose Ángel}, }