@article{IVM_2016_4_a9,
     author = {S. V. Sidorov},
     title = {On similarity classes of second order matrices with zero trace over the ring of integers},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {79--86},
     year = {2016},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2016_4_a9/}
}