@article{MZM_2010_88_1_a1,
     author = {S. L. Gogyan},
     title = {On a {Greedy} {Algorithm} in~$L^1(0,1)$ with {Regard} to {Subsystems} of the {Haar} {System} and on $\omega${-Quasigreedy} {Bases}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {18--29},
     publisher = {mathdoc},
     volume = {88},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_88_1_a1/}
}