@article{MZM_2000_67_6_a7,
     author = {Kh. D. Ikramov and V. N. Chugunov},
     title = {Matrix completion problems of block type},
     journal = {Matemati\v{c}eskie zametki},
     pages = {863--873},
     publisher = {mathdoc},
     volume = {67},
     number = {6},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_67_6_a7/}
}