TY  - BOOK
AU  - Graovac    Ante
TI  - lecture Notes in Chemistry
SN  - 3-540-08431-2
AV  - QD 461 .L43 C.1
PY  - 1977///
CY  - New York
PB  - Springer Verlag
KW  - Molecule theory -Mathematics Label,Graph theory
ER  -