000			00396nam a2200133Ia 4500
008			230130s9999||||xx |||||||||||||| ||und||
020			_a9783319170046
100			_aGiovanni F. Bignami
245		4	_aThe Mystery of the Seven Spheres
250			_a2015
260			_bSpringer International Publishing _c2015
650			_aPhysics and Astronomy
856			_uhttps://doi.org/10.1007/978-3-319-17004-6
999			_c17489 _d17489