@article{MZM_1992_51_6_a12,
     author = {V. I. Filippov},
     title = {Subsystems of the {Haar} system in spaces $E_{\varphi}$ with $\varliminf_{t\to\infty}\dfrac{\varphi(t)}{t}=0$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {97--106},
     publisher = {mathdoc},
     volume = {51},
     number = {6},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_6_a12/}
}