TY  - JOUR
AU  - Zygfryd Kominek
TI  - On the sum and difference of two sets in topological vector spaces
JO  - Fundamenta Mathematicae
PY  - 1971
SP  - 165
EP  - 169
VL  - 71
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-71-2-165-169/
DO  - 10.4064/fm-71-2-165-169
LA  - en
ID  - 10_4064_fm_71_2_165_169
ER  -