@article{SM_1980_36_4_a5,
     author = {A. S. Sadullaev},
     title = {Deficient divisors in the {Valiron} sense},
     journal = {Sbornik. Mathematics},
     pages = {535--547},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1980_36_4_a5/}
}