TY - JOUR A1 - Healey, Timothy J. A1 - Kielhöfer, Hansjörg T1 - Free nonlinear vibrations for a class of two-dimensional plate equations standing and discrete-rotating waves T2 - Nonlinear Analysis: Theory, Methods & Applications Y1 - 1997 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/24003 VL - 29 IS - 5 SP - 501 EP - 531 ER -