@article{FAA_1984_18_4_a15,
     author = {I. L. Sofronov},
     title = {Nondegeneracy of the equations related to the method of difference potentials},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {94--95},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1984_18_4_a15/}
}