000			00408nmm a2200133Ia 4500
008			230201s9999||||xx |||||||||||||||||und||
020			_a9781461257004
100			_aTosio Kato
245		2	_aA Short Introduction to Perturbation Theory for Linear Operators
250			_a1982
260			_bSpringer New York _c1982
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-1-4612-5700-4
999			_c22548 _d22548