@article{IM2_1988_31_3_a2,
     author = {V. V. Sergeichuk},
     title = {Classification problems for systems of forms and linear mappings},
     journal = {Izvestiya. Mathematics },
     pages = {481--501},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1988_31_3_a2/}
}