TY JOUR TI Optimal controlling the coefficients of parabolic equations with integral boundary condition KW optimal control KW parabolic equation KW necessary optimality condition JO Actual directions of scientific researches of the XXI century: theory and practice AU Tagiev, R.. AU Gashimov, S.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov