TY  - BOOK
AU  - Nishizeki T
AU  -  Chiba N
TI  - Planar graphs: theory and algorithms
T2  - Annals of dicrete Mathematics; 32
U1  - B44, M8 
PY  - 1988///
CY  - Amsterdam
PB  - North Holland        
KW  - Graph theory
ER  -