@article{MMO_1969_20_a0,
     author = {E. V. Maǐkov},
     title = {$\tau$-smooth functionals},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {3--42},
     publisher = {mathdoc},
     volume = {20},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1969_20_a0/}
}