@article{Sitnik2014approximation, author={Sitnik, S.. and Timashov, A..}, title={Approximation by finite dimension linear systems in problems of quadratic exponential interpolation}, journal={Actual directions of scientific researches of the XXI century: theory and practice}, publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov}, year={2014}, pages={140-143}, volume={2}, issue={4}, }