@article{DAN_1968_179_3_a2,
     author = {B. M. Bychkov and V. M. Grober},
     title = {The absence of an unconditional basis in the factor spaces $L'_1/H_0^1$ and $L'/H'_0$},
     journal = {Doklady Akademii Nauk},
     pages = {511--514},
     publisher = {mathdoc},
     volume = {179},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_179_3_a2/}
}