TY  - JOUR
AU  - Putnam, C. R.
TI  - On Differences of Unitarily Equivalent Self-Adjoint Operators†
JO  - Glasgow mathematical journal
PY  - 1960
SP  - 103
EP  - 107
VL  - 4
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S2040618500033992/
DO  - 10.1017/S2040618500033992
ID  - 10_1017_S2040618500033992
ER  -