000			00375nmm a2200133Ia 4500
008			230125s9999||||xx |||||||||||||||||und||
020			_a9781489915528
100			_aAlexander G. Ramm
245		0	_aSpectral and Scattering Theory
250			_a1998
260			_bSpringer US _c1998
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-1-4899-1552-8
999			_c10628 _d10628