Formulation of the extended plane wave expansion for in‐plane and out‐of‐plane vibrations in viscoelastic phononic thin plates under a constant temperature field. - Santos, Mateus C. P. dos; Filho, Cimark G. Sandes; Miranda, Edson J. P. de; Sinatora, Amilton (ZAMM -- Journal of Applied Mathematics & Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2025)