%0 Journal Article
%T Constructing method related to technical drawing of sphere surface with overlay of sphere’s own and falling shadows
%A Nikiforov, V..
%A Maltseva, E..
%K technical drawing, surface area, axonometric projection,
secondary projection, ellipse.
%J Geometry & Graphics
%D 2013
%N 1
%P 2
%I INFRA-M Academic Publishing LLC.