@article{ZNSL_1995_221_a8,
     author = {N. Ivochkina and O. Ladyzhenskaya},
     title = {Flows generated by symmetric functions of the eigenvalues of the {Hessian}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {127--144},
     publisher = {mathdoc},
     volume = {221},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1995_221_a8/}
}