TY - JOUR AU - Ahmed Mousa Khalifa TI - Exact solutions for the vibration of circumferentially stepped orthotropic circular cylindrical shells JO - Comptes Rendus. Mécanique PY - 2011 SP - 708 EP - 718 VL - 339 IS - 11 PB - Elsevier DO - 10.1016/j.crme.2011.08.001 LA - en ID - CRMECA_2011__339_11_708_0 ER -