@article{10_21136_CMJ_2017_0416_16,
     author = {S{\l}owik, Roksana},
     title = {Maps on upper triangular matrices preserving zero products},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1095--1103},
     publisher = {mathdoc},
     volume = {67},
     number = {4},
     year = {2017},
     doi = {10.21136/CMJ.2017.0416-16},
     mrnumber = {3736021},
     zbl = {06819575},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2017.0416-16/}
}