@article{10_4064_sm186_1_5,
     author = {M. H. Shirdarreh Haghighi},
     title = {Invertibility preserving linear mappings into $M_2({\mathbb C})$},
     journal = {Studia Mathematica},
     pages = {41--45},
     publisher = {mathdoc},
     volume = {186},
     number = {1},
     year = {2008},
     doi = {10.4064/sm186-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm186-1-5/}
}