TY JOUR TI Regular convex polyhedra from the standpoint of analytical and projective geometry KW Plato's geometric solids KW system of three projection planes KW duality principle 
of projective geometry KW implementation of modeling in the mathematical package Maple JO Journal of Natural Sciences Research AU Chasovnikov, D.R. AU Grafskiy, O.A. PY 2025 IS 10 PB INFRA-M Academic Publishing LLC.