000			00445nmm a2200145Ia 4500
008			230201s9999||||xx |||||||||||||||||und||
020			_a9783662007815
100			_aKosaku Yosida
245		0	_aFunctional Analysis
250			_a3rd ed. 1971
260			_bSpringer Berlin Heidelberg _c1971
440			_aGrundlehren der mathematischen Wissenschaften
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-3-662-00781-5
999			_c22516 _d22516