TY  JOUR
TI  About the Tasks of Descriptive Geometry With Imaginary Solutions
KW  the imaginary point
KW  an isolated point
KW  isotropic the
direct
KW  imaginary tangent
KW  the order of the curve
KW  class curve.
JO  Geometry & Graphics
AU  Ivanov, G..
AU  Dmitrieva, I.M.
PY  2015
IS  3
PB  INFRA-M Academic Publishing LLC.