@article{DAN_1972_206_4_a1,
     author = {M. G. Gasymov},
     title = {On the theory of high-order evolution equations},
     journal = {Doklady Akademii Nauk},
     pages = {780--783},
     publisher = {mathdoc},
     volume = {206},
     number = {4},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_206_4_a1/}
}