TY JOUR TI Some problems of the theory of dynamic equations on time-scales KW dynamic equations KW time-scales KW the hole KW the delta-derivative. JO Actual directions of scientific researches of the XXI century: theory and practice AU Bakhtina, Z.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov