@article{IIMI_2006_36_2_a7,
     author = {\`E. V. Vdovina and Yu. A. Klushkin},
     title = {Visualization of phase-plain portraits of linear homogeneous systems of differential equations with constant coefficients of third order},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {35--38},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_36_2_a7/}
}