00295nam a2200121Ia 450000500170000000800410001704100080005808200130006610000160007924500310009526000380012630000090016420260720174736.0260720s1994    xx            000 0 und d  aeng  a530 THOB  aKips Thorne  aBlack holes and time warps  aNewyorkbW.W.Nortal Companyc1994  a612p