Cummings, Benjamin Edgar (1962) Some Nonlinear Vibration and Response Problems of Cylindrical Panels and Shells (Dissertation (Ph.D)), California Institute of Technology doi: 10.7907/AXC2-6P94 Cummings, Benjamin Edgar (1957) Supersonic Flutter of a Plate Containing Many Bays in the Spanwise Direction (Engineering Degree)), California Institute of Technology doi: 10.7907/M4GA-0651