000			00447nam a2200145Ia 4500
008			230130s9999||||xx |||||||||||||| ||und||
020			_a9783030178017
100			_aPieter C. van der Kruit
245		0	_aJan Hendrik Oort
250			_a1st ed. 2019
260			_bSpringer International Publishing _c2019
440			_aAstrophysics and Space Science Library
650			_aPhysics and Astronomy
856			_uhttps://doi.org/10.1007/978-3-030-17801-7
999			_c18457 _d18457