000			00463nmm a2200145Ia 4500
008			230125s9999||||xx |||||||||||||||||und||
020			_a9783034886239
100			_aM. Demuth, B.W. Schulze, B. Gramsch
245		0	_aOperator Calculus and Spectral Theory
250			_a1992
260			_bBirkhäuser Basel _c1992
440			_aOperator Theory: Advances and Applications
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-3-0348-8623-9
999			_c6078 _d6078