000 00377pam a2200157a 44500
008 230515b1989 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGL
082 _aMOR
100 _aMORAN J. M. / HEWITT J. N.
245 _aLECT. NOTES IN PHYSICS :GRAVITATIONAL LENSES
250 _aNULL
260 _aNULL
_bSPRINGER
_c1989
300 _a430P.
650 _aNULL
999 _c654379
_d654379