@article{DE_1975_11_7_a12,
     author = {G. M. Vainikko and P. \`E. Oja},
     title = {The convergence and rate of convergence of the {Galerkin} method for abstract evolution equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1269--1277},
     publisher = {mathdoc},
     volume = {11},
     number = {7},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_7_a12/}
}