000
00251pam a2200109a 44500
082
_a
160
_b
ST9
100
_a
Ackermann, W.
245
1
_a
SOLVABLE CASES OF THE DECISION PROBLEM
260
_a
_b
North-Holland
_c
1954
964
_g
CIRC
997
_a
2826 C
999
_c
413154
_d
413154