TY  - JOUR
AU  - Gert K. Pedersen
AU  - Richard V. Kadison
TI  - Means and convex combinations of unitary operators.
JO  - Mathematica Scandinavica
PY  - 1985
SP  - 249
EP  - 266
VL  - 57
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1985__57_166953/
ID  - MS2_1985__57_166953
ER  -