TY  - BOOK
AU  - Aho,Alfred V.  
AU  - Hopcroft,John E
AU  - Ullman,Jeffrey D
TI  - Data Structures and algorithms
SN  - 0201000237
U1  - 001.64 
PY  - 1983///
CY  - London: 
PB  - Addison Wesley publishing , 
KW  - Algorithms
KW  - Computer Science
KW  - Directed Graphs
KW  - Trees
ER  -