@article{MZM_1971_10_6_a3,
     author = {F. S. Lisin},
     title = {Relation between approximations in the mean for analytic and for harmonic functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {627--634},
     publisher = {mathdoc},
     volume = {10},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_6_a3/}
}