000			00454nmm a2200145Ia 4500
008			230201s9999||||xx |||||||||||||||||und||
020			_a9781461264002
100			_aGeorgio Eugenio Oscare Giacaglia
245		0	_aPerturbation Methods in Non-Linear Systems
250			_a1972
260			_bSpringer New York _c1972
440			_aApplied Mathematical Sciences
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-1-4612-6400-2
999			_c22395 _d22395