@article{SM_1977_32_4_a6,
     author = {K. I. Oskolkov},
     title = {Approximation properties of summable functions on sets of full measure},
     journal = {Sbornik. Mathematics},
     pages = {489--514},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1977_32_4_a6/}
}