@article{DAN_1991_318_3_a7,
     author = {V. V. Shelukhin},
     title = {On the solution of linear evolution equations by the variational},
     journal = {Doklady Akademii Nauk},
     pages = {545--547},
     publisher = {mathdoc},
     volume = {318},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_3_a7/}
}