TY  - JOUR
AU  - Phillips, N. Christopher
TI  - Every Invertible Hilbert Space Operator is a Product of Seven Positive Operators
JO  - Canadian mathematical bulletin
PY  - 1995
SP  - 230
EP  - 236
VL  - 38
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1995-033-9/
DO  - 10.4153/CMB-1995-033-9
ID  - 10_4153_CMB_1995_033_9
ER  -