000			00280nam a2200121Ia 4500
008			230413s9999||||xx |||||||||||||| ||und||
082			_a34HI
100			_aHinch, E. J.
245		0	_aPerturbation methods
260			_bCambridge University Press
260			_c1991
942			_cBooks
999			_c1511 _d1511