TY JOUR TI Method of green functions in mathematical modelling for two-point boundary-value problems KW two-point boundary-value problems KW Green function KW graph theory. JO Actual directions of scientific researches of the XXI century: theory and practice AU Ryzhkova, E.. AU Sitnik, S.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov