000
00288 a2200121 4500
080
_a
547.655
_b
S 742 C
245
1
_a
Cyclische acetalen van pyrocatechol
_c
by J.J.V.D. Spek
260
_c
1938
650
_a
Acetalen
650
_a
Pyrocatechol
100
1
_a
Spek, J.J.V.D.
_d
901
_a
13389
999
_c
29620
_d
29620