000			00452nam a2200145Ia 4500
008			230130s9999||||xx |||||||||||||| ||und||
020			_a9783319444567
100			_aMichael Ashkenazi
245		0	_aWhat We Know About Extraterrestrial Intelligence
250			_a1st ed. 2017
260			_bSpringer International Publishing _c2017
440			_aSpace and Society
650			_aPhysics and Astronomy
856			_uhttps://doi.org/10.1007/978-3-319-44456-7
999			_c15852 _d15852