@article{SM_1973_21_4_a3,
     author = {I. B. Simonenko},
     title = {Higher approximations of the averaging method for abstract parabolic equations},
     journal = {Sbornik. Mathematics},
     pages = {535--543},
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1973_21_4_a3/}
}