TY  - JOUR
AU  - Roman Sikorski
TI  - Algebra of formalized languages
JO  - Colloquium Mathematicum
PY  - 1962
SP  - 1
EP  - 31
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-9-1-1-31/
DO  - 10.4064/cm-9-1-1-31
LA  - en
ID  - 10_4064_cm_9_1_1_31
ER  -