TY  - JOUR
AU  - A. Ostaszewski
TI  - On the descriptive sot theory of the lexicographic square
JO  - Fundamenta Mathematicae
PY  - 1975
SP  - 261
EP  - 281
VL  - 87
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-87-3-261-281/
DO  - 10.4064/fm-87-3-261-281
LA  - en
ID  - 10_4064_fm_87_3_261_281
ER  -