TY  - BOOK
TI  - Gmelin handbook of inorganic and organometallic chemistry : : F,E,Suppl.,4. Fluor ; E,Suppl.,4. Perfluorohalogenoorgano compounds of main group elements. Supplement vol.4: Heterocyclic compounds of nitrogen / 
SN  - 354093569X
PY  - 1988///, 1988
CY  - Berlin [u.a.] : 
PB  - Verl. Chemie [u.a.],  
ER  -