@article{DE_1972_8_4_a12,
     author = {G. N. Mil'shtein},
     title = {On the problem of analytic construction of regulators for equations of parabolic and hyperbolic type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {678--695},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_4_a12/}
}