000 00379pam a2200133a 44500
082 _aNASA
_bTN D-964
100 _aGreenwood,Donald T
245 1 _aTHE USE OF HIGHER-ORDER DIFFERENCE METHODS IN BEAM VIBRATION ANALYSIS
260 _a
_bNasa, Washington, D.C.
_c1961
300 _a117
500 _aBound With Nasa Tn D-961-963,965-970
964 _gCIRC
997 _aTR15900 C
999 _c400231
_d400231