TY - JOUR AU - Mirkhalaf Valashani, S.M TI - Transverse Vibration of Clamped and Simply Supported Circular Plates with an Eccentric Circular Perforation and Attached Concentrated Mass JO - Journal of Solid Mechanics VL - 1 IS - 1 SP - 37 EP - 44 PY - 2009 DO - ER -