@article{SM_1981_39_4_a2,
     author = {R. I. Ovsepian},
     title = {On the extraction, from general systems, of lacunary subsystems with the absolute convergence property},
     journal = {Sbornik. Mathematics},
     pages = {469--477},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1981_39_4_a2/}
}