TY  - BOOK
AU  - Knuth, Donald E.
TI  - Art of computer programming: mathematical preliminaries redux, introduction to backtracking, dancing links - Vol. 4
SN  - 9780134671796
U1  - 001.642 KNU 
PY  - 2020///
CY  - Boston
PB  - Addison-Wesley
KW  - Computer Programming
ER  -