@article{IM2_2020_84_4_a4,
     author = {V. M. Busovikov and V. Zh. Sakbaev},
     title = {Sobolev spaces of~functions on {a~Hilbert} space endowed with a~translation-invariant measure and approximations of~semigroups},
     journal = {Izvestiya. Mathematics },
     pages = {694--721},
     publisher = {mathdoc},
     volume = {84},
     number = {4},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2020_84_4_a4/}
}