TY  - BOOK
AU  - Al-Khalili,Jim
TI  - Black holes, wormholes & time machines
SN  - 0585267952 (electronic bk.)
PY  - 1999///
CY  - Bristol, U.K.
PB  - Institute of Physics
KW  - Space and time
N1  - Includes bibliographical references (p. 254-258) and index
UR  - http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=40985
ER  -