TY  - JOUR
AU  - Hamhalter, Jan
TI  - The sums of closed subspaces in a topological linear space
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 1989
SP  - 61
EP  - 64
VL  - 30
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUCMP_1989__30_2_a8/
LA  - en
ID  - AUCMP_1989__30_2_a8
ER  -