00441nam a2200157Ia 450000100060000000800410000602000180004704000130006508200160007810000160009424500860011026000540019630000110025054600070026165000150026823268140410s9999    xx            000 0 und d  a0-521-62012-0  cPK-LaUMT  a 576bDIC-L  aSteven Dick  aLife on other worlds:bthe 20th century extraterrestrial life debatecSteven Dick  aCambridge,USA:bCambridge University Press,c1998  a290 p.  aEN  aExobiology