@article{RM_1981_36_2_a16,
     author = {O. V. Ogievetskii},
     title = {The characteristic equation for $3\times 3$ matrices over octaves},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {189--190},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1981_36_2_a16/}
}