TY  JOUR
TI  Some theorems on vektor fields on surfaces in r3
KW  a vector field
KW  a multiplier
JO  Actual directions of scientific researches of the XXI century: theory and practice
AU  Voskovskaya, N..
PY  2014
IS  2
PB  FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov