000
00313nam a2200121 4500
008
160616s 000 0
245
_a
Non euclidean hyperbolic plane its structure and consistency
100
_a
Kelly, Paul
100
_a
Mathews, Gordon
500
_a
B6 M12
942
_c
BK
_2
BK2707
080
_a
514 KEL
999
_c
2707
_d
2707