TY  - JOUR
AU  - Jerzy Płonka
TI  - Some remarks on sums of direct systems of algebras
JO  - Fundamenta Mathematicae
PY  - 1968
SP  - 301
EP  - 308
VL  - 62
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-62-3-301-308/
DO  - 10.4064/fm-62-3-301-308
LA  - en
ID  - 10_4064_fm_62_3_301_308
ER  -