@article{MZM_1980_28_2_a5,
     author = {Yu. F. Korobeinik and A. F. Leont'ev},
     title = {Property of inwards-extendability of representing systems of exponentials},
     journal = {Matemati\v{c}eskie zametki},
     pages = {243--254},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1980_28_2_a5/}
}