000			00418nam a2200145Ia 4500
008			230130s9999||||xx |||||||||||||| ||und||
020			_a9783319098944
100			_aSujan Sengupta
245		0	_aWorlds Beyond Our Own
250			_a2015
260			_bSpringer International Publishing _c2015
440			_aAstronomers' Universe
650			_aPhysics and Astronomy
856			_uhttps://doi.org/10.1007/978-3-319-09894-4
999			_c16332 _d16332