@article{IM2_1981_16_1_a9, author = {A. M. Sedletskii}, title = {Excesses of systems of exponential functions}, journal = {Izvestiya. Mathematics }, pages = {191--205}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1981}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1981_16_1_a9/} }