000 00355pam a2200121a 44500
008 160408b xxu||||| |||| 00| 0 eng d
082 _a620.3
_bK698N
100 _aKlotter,K
245 1 _aNON-LINEAR VIBRATION PROBLEMS TREATED BY THE AVERAGING METHOD OF W. RITZ
260 _a
_bStanford University Press, Stanford
_c
964 _gCIRC
997 _aA46819 s C
999 _c273653
_d273653