TY  - JOUR
AU  - Mitrana, Victor
TI  - On languages satisfying “interchange lemma”
JO  - RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
PY  - 1993
SP  - 71
EP  - 79
VL  - 27
IS  - 1
PB  - EDP-Sciences
UR  - http://www.numdam.org/item/ITA_1993__27_1_71_0/
LA  - en
ID  - ITA_1993__27_1_71_0
ER  -