TY  - BOOK
AU  - kulpe Siegfried
AU  - Dahne Siegfried
TI  - Structural principles of unsaturated organic compounds: with special reference to x-ray structure analyses of coloured substances
U1  - 547 
PY  - 1977///
CY  - Berlin
PB  - Akademie-verlag
KW  - Chemistry
KW  - Organic chemistry
KW  - Organic compounds
ER  -