@article{10_4064_sm184_2_7,
     author = {Heydar Radjavi and Peter \v{S}emrl},
     title = {Linear maps preserving quasi-commutativity},
     journal = {Studia Mathematica},
     pages = {191--204},
     year = {2008},
     volume = {184},
     number = {2},
     doi = {10.4064/sm184-2-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm184-2-7/}
}