Leu, Liang-JenqLiang-JenqLeuYang, Yeong-BinYeong-BinYang2009-02-192018-07-092009-02-192018-07-091994http://ntur.lib.ntu.edu.tw//handle/246246/133862en-USNon-Linear Stiffnesses in Analysis of Planar Framesjournal article10.1016/0045-7825(94)90116-32-s2.0-0028480916