TY  - JOUR
AU  - Słowik, Roksana
TI  - Maps on upper triangular matrices preserving zero products
JO  - Czechoslovak Mathematical Journal
PY  - 2017
SP  - 1095
EP  - 1103
VL  - 67
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2017.0416-16/
DO  - 10.21136/CMJ.2017.0416-16
LA  - en
ID  - 10_21136_CMJ_2017_0416_16
ER  -