TY  - JOUR
AU  - Williams, James
TI  - On a question of Pultr regarding categories of structures
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1974
SP  - 113
EP  - 126
VL  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a9/
LA  - en
ID  - CMUC_1974__15_1_a9
ER  -