000			00574nam a22001697a 4500
008			230428b |||||||| |||| 00| 0 eng d
020			_a978-3-319-13236-5
040			_aNational Science Library _cNational Science Library
080			_a523.4 _bQ5
100			_aWebb, Stephen _97871
245			_aIf the universe is teeming with aliens...where is everybody?: _bSeventy-five solutions to the Fermi paradox and the problem of extraterrestrial life
250			_a2nd ed.
260			_aLondon: _bSpringer, _c2015
300			_a434p.
650			_aScience
942			_2udc _cBK
999			_c25153 _d25153