@article{GMJ_2000__7_1_48750,
     author = {Nadibaidze, G.},
     title = {On the rearranged block-orthonormal systems.},
     journal = {Georgian Mathematical Journal},
     pages = {169--177},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2000},
     zbl = {0962.42019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2000__7_1_48750/}
}