TY  - BOOK
AU  - Boucher,L.J.C.
AU  - Koeber,Karl
AU  - Schleitzer-Rust,Edith
TI  - Gmelin handbook of inorganic chemistry: system number 56
SN  - 3540936025
PY  - 1990///
CY  - Berlin, Heidelberg [u.a.]
PB  - Springer
ER  -