000
00273nam a2200109 4500
008
160616s 000 0
245
_a
Gravitation, an Introduction to current research
100
_a
Witten, Louis
500
_a
CN K22
942
_c
BK
_2
BK5737
080
_a
531.5 WIT
999
_c
5737
_d
5737