TY  - JOUR
AU  - Retherford, J. R.
TI  - Some Characterizations of co and l1
JO  - Canadian mathematical bulletin
PY  - 1967
SP  - 39
EP  - 52
VL  - 10
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-005-7/
DO  - 10.4153/CMB-1967-005-7
ID  - 10_4153_CMB_1967_005_7
ER  -