000			00351pam a2200133a 44500
082			_aNASA _bCR-1554
100			_aKamel,A A
245	1		_aPERTURBATION METHOD IN THE THEORY OF NONLINEAR OSCILLATIONS.
260			_a _bNasa, Washington, D.C. _c
300			_a41
500			_aBound With Nasa Cr-1551-53,1555.
964			_gCIRC
997			_aTR11383 C
999			_c396780 _d396780