@article{RM_1974_29_2_a9,
     author = {M. I. Vishik and A. V. Fursikov},
     title = {Analytic first integrals of non-linear parabolic systems of differential equations in the sense of {Petrovskii,} and applications},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {124--157},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1974_29_2_a9/}
}