TY  - BOOK
AU  - Demetrovics, J., ed.
AU  - Katona, G., ed.
AU  - Salomaa, A., ed.
TI  - Algebra, combinatorics and logic in computer science
T2  - Colloquia Mathematic Janos Bolyai
SN  - 0444878521
U1  - 005.131 
PY  - 1986///
CY  - Amsterdam
PB  - N-H
ER  -