@article{MZM_1984_36_3_a15,
     author = {N. Yu. Bakaev},
     title = {A projection method for the solution of a differential equation with variable operator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {425--434},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_3_a15/}
}