TY  - JOUR
AU  - Šemrl, Peter
TI  - Order and Spectrum Preserving Maps on Positive Operators
JO  - Canadian journal of mathematics
PY  - 2017
SP  - 1422
EP  - 1435
VL  - 69
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-2016-039-0/
DO  - 10.4153/CJM-2016-039-0
ID  - 10_4153_CJM_2016_039_0
ER  -