%0 Journal Article %T Some problems of the theory of dynamic equations on time-scales %A Bakhtina, Z.. %K dynamic equations, time-scales, the hole, the delta-derivative. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov