TY  - BOOK
AU  - Graova Ante
AU  -  Gutman Ivan
AU  -  Trinajstic Nenad
TI  - Topological approach to the chemsitry of conjugated molecules
T2  - Lecture notes in chemistry; 4
U1  - E:218:(B44), L7 
PY  - 1977///
CY  - Berlin
PB  - Springer- Verlag        
KW  - Molecular spectroscopy
ER  -