Electronic Resource
1,5,7,11-Tetraoxaspiro[5.5]undecane, 3,9-Dimethylidene-1,5,7,11-tetraoxaspiro[5.5]undecane and 1,5-Dioxa-7,11-dithiaspiro[5.5]undecane
(1998)
Oxford [u.a.]
:
International Union of Crystallography (IUCr)
Acta crystallographica
54 (1998), S. 1019-1023