TY  - JOUR
AU  - Kalton, N. J.
TI  - Sums of Idempotents in Banach Algebras
JO  - Canadian mathematical bulletin
PY  - 1988
SP  - 448
EP  - 451
VL  - 31
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-065-4/
DO  - 10.4153/CMB-1988-065-4
ID  - 10_4153_CMB_1988_065_4
ER  -