TY  - JOUR
TI  - Fiftieth volume of theoretical computer science
AU  - Maurice Nivat
PY  - 1988
JO  - Theoretical Computer Science
DO  - 10.1016/0304-3975(88)90001-1
UR  - https://doi.org/10.1016/0304-3975(88)90001-1
ER  -